of Directors

Cathy Tarr

Founder & Executive Director
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Cathy Tarr, Founder & Executive Director

In 2016 Cathy fell in love with hiking while exploring The Whites in Shelburne, NH and trail angel-ing for AT hikers. Her love for the PCT and long distance trails inspired her to volunteer in the effort to find Kris Fowler in August 2017. While searching for Kris, she saw a flyer for another missing hiker, David O’Sullivan in California, and her mission became clear.

Over the past few years, Cathy has brought together an amazing team of people eager to help families of missing hikers. She has coordinated numerous volunteer search efforts, offering her time and experience to families who are searching for a loved one.

As a compassionate and dedicated family liaison/advocate, Cathy provides wise counsel to families, connecting them with vetted search resources, and serves as the family advocate on the David O’Sullivan case. 

Deborah Fuller

Board Chair
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Deborah Fuller, Board Member

While growing up in Washington state, Deb’s passion for hiking began on the trails of the Cascade and Olympic mountain ranges.
During the twenty years of her husband’s military career, she has been able to hike trails on Denali in the Alaska range, San Bernardino Mountains, Spring Mountain Range, Phoenix Mountains, Sierra Nevada, Montes de Toledo, and the Dolomite Mountains.
Following her husband’s retirement, they both accepted assignments serving with UNPROFOR, which provided opportunities to hike trails in the Dinaric Alps and encompassed an opportunity to travel to the Annapurna Range.
Deb pursued her academic background, wherever they were stationed, culminating in a Master’s in Health Services Administration (Arizona State University) following completion of the UNPROFOR assignment.
Deb’s professional credentials include Certified Professional Healthcare Quality (CPHQ), Healthcare Quality Professional of the Year (FL, 2001), and Licensed Healthcare Risk Manager (FL). Deb has attempted the PCT in 2016, 2018, and 2019.

Laura Gray

Board Treasurer
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Laura Gray, Board Treasurer

Laura is a Financial Consultant with over 30 years in business leadership as an owner, CEO/CFO, and Controller. She is a mother to three, including Jacob, who went missing in 2017, and grandmother to seven (two of which are foster-adopted).  

The search for Jacob began in April of 2017 when his bike was sighted on the side of the Sol Duc River in Olympic National Park, WA.  After quickly concluding that Jacob had slipped into the river, the local authorities chose to wait on the search, and the bulk of the effort fell on determined and desperate family members. Laura’s role in the search included a robust social media presence (FB group Find Jacob Gray), dealing with multiple jurisdictions and agencies, and working with local community and media outlets. After 16 months, Jacob’s remains were found in August 2018 by volunteer marmot biologists at the top of Hoh Lake. 

It has become part of Laura’s heart ever since to use her skills, life experiences, and love for Jacob to support families in their quest for missing loved ones.

Jill Tavolazzi

Board Secretary
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Jill Tavolazzi, Board Treasurer

Jill retired as an Administrative Analyst from San Diego State University where she earned a B.A. in Public Administration and Urban Studies. During her time there, she was inducted into the Phi Kappa Phi Honor Society in recognition of her outstanding service to the University. Eventually, she served as the Treasurer for SDSU’s chapter and held that position for over 10 years. While serving as Treasurer, the chapter earned outstanding recognition as Chapter of Excellence for several years.

After she retired, Jill was on a visit to Ireland in the summer of 2017 when David O’Sullivan’s family realized he had gone missing while hiking the PCT. Jill was friends with David’s mother and aunt, so hearing the devastating news first-hand truly impacted her. After returning home to the San Diego area Jill participated in her first group search for David with Irish Outreach, spearheaded by Cathy Tarr. Jill felt an instant connection when meeting Cathy, especially after discovering they were both born in Western Pennsylvania. Since then Jill has participated in several searches for David. After meeting so many amazing volunteers, and with David’s family so far away, Jill is committed to doing whatever she can to find David and other missing hikers.

Tim Riley

Board Member
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Tim Riley, Board Chairman

Tim was born in Milwaukee, Wisconsin, and obtained his J.D. from the University of Wisconsin in 1984. He was admitted to the Wisconsin Bar that same year, and gained admittance in California in 1986. Since 1994, Tim has been certified as a Specialist in Estate Planning, Trust and Probate law by the California Board of Legal Specialization of the State Bar of California. He is rated “AV” by Martindale-Hubbell, and has consistently been named one of San Diego’s “Top Lawyers” and a “Super Lawyer” in the area of Probate, Estate Planning and Trust Law.

Effective November 1, 2019, Tim retired from the active practice of law. However, he continues to consult with the attorneys at Hughes & Pizzuto, APC, in the areas of estate planning, probate and trust administration, estate/gift tax controversies, and contested probate matters. Tim now concentrates on his mediation practice with West Coast Resolution Group, having served as a neutral in more than 150 mediations of probate-related matters. He also serves as a judge pro tem in the Probate Division of the San Diego Superior Court, as a court-appointed guardian ad litem, and is a founder and director of the Probate Attorneys of San Diego.

Beyond his role with the Fowler-O’Sullivan Foundation, Tim serves on the boards of Irish Outreach and the Irish Congress of Southern California.

Sally Fowler

Board Member
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Sally Fowler, Board Member

Sally Fowler’s life changed forever in the fall of 2016, when her stepson disappeared while hiking the Pacific Crest Trail.

Kris “Sherpa” Fowler started his PCT thru-hike at the California/Mexican Border on May 8—Mother’s Day. Kris was near the end of his 2650-mile PCT journey to the Canadian Border when he was last seen on October 12 at the White Pass Trailhead in Washington state.

There have been many official and volunteer searches for Kris, including a search that was, at the time, the largest in Washington state history. Unfortunately, no definitive signs of Kris or his whereabouts have been found.

In 2016, Sally and her family created the Facebook group Bring Kris Fowler/Sherpa Home, which now has over 8K followers. This group provides guidance to other families when a loved one goes missing in the wilderness. In 2017, Sally and another member of this FB group helped reunite a family with a loved one who had been missing for 4 years.

During the early stages of Kris’s disappearance, families of the missing offered Sally useful advice. She has paid this forward by providing support to several families of missing hikers and advising them on what steps to take. “It is an honor that the Fowler-O’Sullivan Foundation was named after my son, Kris,” Sally says. “I want to continue helping others who are experiencing what is probably the most devastating event in their life.”

Stewart Krull

Board Member
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Stewart Krull, Board Member

As an award-winning executive creative director, Stewart brings more than three decades of advertising and marketing experience to the Fowler-O’Sullivan Foundation. But it’s his experience as a grieving father that makes Stewart’s passion for the FOF and its mission so profound.

When 20-year-old Zachary Krull failed to return from a solo hike during a sudden and severe winter storm at Olympic National Park in April 2017, Stewart and his family learned firsthand what local law enforcement and volunteer SAR teams can and cannot do when time, weather and logistics conspire against you. Sparing the family the devastation of facing long-term ambiguous loss, Zachary’s remains were accidentally discovered, and recovered, three months later.

For Stewart, there can be no better way to honor the memory of his nature-loving son than working to help the Foundation prevent or bring closure to other missing hiker cases.

Tanya Barba

Tanya Barba

Board Member
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Tanya Barba, Board Member

With a professional background in law enforcement, trade marketing, and contract negotiations, Tanya brings a diverse background and unique perspective to the Fowler-O’Sullivan Foundation. A graduate of Portland State University, she has a degree in Psychology and Sociology, along with certification from the Oregon Department of Public Safety Standards and Training.

Tanya’s love of the outdoors and wilderness education led to her involvement in search and rescue. Nicknamed “The Wilderness Warrior” for her ability to stay hopeful and never give up, she has been instrumental in the organization and investigation of several searches.

“Working with families of missing loved ones is a tremendous honor and privilege,” Tanya says. “Such traumatic times require a liaison to exhibit emotional and physical stability, strength, compassion, grit and resilience…you must always remember that your work is for the families who need your support and rely on you in the most difficult times of their life.”


Board Members

Con and Carmel O’Sullivan

(with David in the middle)


of the Foundation

Morgan Clements

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Morgan Clements

Since 2006, Morgan Clements has been the CEO and Founder of GlobalIncidentMap, a company which monitors open source information and converts it into geospatial intelligence, for government, military, law enforcement, and corporate clients. A long-distance backpacker, Morgan has volunteered since 2016 in the searches for multiple missing hikers, including successfully locating the human remains of a hiker missing for more than one year at Joshua Tree National Park, as part of a team effort. Morgan also publishes which is updated daily with events related to missing hikers, rescued climbers, kayaking accidents, and other outdoor incidents which may require rescue or recovery. Morgan hopes that through these volunteer efforts he can help bring resolution and peace to families of the missing.

Andrea Lankford

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Andrea Lankford

Andrea is an author, a registered nurse, and a former NPS law enforcement park ranger. She has 12 years experience in search and rescue and wilderness medicine. She helped design and implement Hike Smart Hike Safe, an innovative Preventative SAR campaign at the Grand Canyon that still save lives today. Her outdoor experience includes an AT thru-hike, kayaking from Miami to Key West, and she was the first to bike-back the Arizona Trail. She is currently writing a book about the search for three hikers still missing form the Pacific Crest Trail.

Theresa Sturkie

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Theresa Sturkie

In 2019 Theresa’s life was upended forever when her husband, John Sturkie disappeared while driving in the San Jacinto Mountains. During her search for John, Theresa met Cathy Tarr who was searching for David O’Sullivan in the same area. The two women combined forces to organize volunteer searches for both John and David, a PCT hiker who vanished the year before. During one search in late May, Cathy spotted a bloody sock about 100 feet in front of the truck in the direction of mile marker 193 on the PCT. After this discovery, the authorities conducted another search and John’s body was found. A mother of four, Theresa wants to pay it forward by helping other families of people who go missing in wilderness locations.

Jessica Knoelk

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Jessica Knoelk

Jessica is an avid outdoor adventurer from Idaho, who loves to teach others outdoor recreational skills, while sharing her knowledge on preventative SAR and backcountry safety. From an early age, she developed a love for the mountains and everything outdoors. Growing up in southeastern Idaho, provided her many opportunities over the years to travel and explore the vast wilderness areas all throughout Idaho, Montana, Wyoming, and Oregon. Jessica loves to hike and backpack year round with her dogs, son, and friends. She also enjoys winter camping, snowshoeing, hammock camping, learning primitive skills, hiking, backpacking, kayaking, hunting, fishing, photography, discovering historical hidden treasures in the backcountry and more. Jessica continues to build upon her knowledge and skills, and she hopes to become a certified Drone piolet in the future.

Shannon Winkel

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Shannon Winkel

Shannon Winkel has a passion for helping others and loves giving of her time for Search and Rescue/Recovery missions. She is a member of the FEMA based CERT (Community Emergency Response Team) team in S.E. Idaho, volunteers for the Disaster Action Team for the American Red Cross, is certified in the Stop The Bleed program, CPR, and for Certified Family Homes for the developmentally disabled and delayed. Shannon also has earned her FAA Part 107/UAG pilot license for flying drones commercially, volunteers also for the WSAS (Western States Aerial Search) and is actively taking several first aid and SAR classes through NASAR, the U of U, and the Red Cross. Shannon has hiked in mountain ranges across the world (her favorites are the Swiss Alps and the Tetons!) and loves hiking, peak bagging, camping, outdoor survival and kayaking. Shannon was a professional musical theater singer/dancer/actress/choreographer/teacher for over 20 years and is happy to be spending retirement in the mountains and desert. Shannon is also a wife and mother to two children, and a ‘pawrent’ to two adorable dogs. 

Brandon Brown

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Brandon Brown

– Born and raised in Oregon, where I grew up camping, fishing and hunting.
– Formal training through Mt. Hood Community Colleges Wilderness Leadership program.
– Training included
– Wilderness First Responder (since expired, would be willing to renew)
– Whitewater Rescue Technician
– Avalanche Rescue
– Crevasse Rescue
– Became a backcountry wilderness guide, eventually was in charge of all guide training and running the company I worked for.
– Guided
– Mountaineering
– Backcountry ski/snowboarding
– Winter Camping
– Snowshoeing
– Rock Climbing/ Repelling
– Backpacking
– Wilderness Survival

Currently live on the edge of Mt. Hood National Forest, with my wife of 13 years Rachel and our two daughters Rilee and Kennedi. I assisted in a local search for a missing person and through that realized this is where I would like to apply my backcountry knowledge.


Drone Pilot Team

Kent Delbon
John Jones
John Powers
Steve Reinhart
John Wilcox