Zaldivar was last seen in Rialto, California on January 25, 2016. He left home early that morning without telling anyone and has never been heard from again.

Tom Messick, Disappeared November 15, 2015, Horicon, Warren County, Lake George Wild Forest, New York. Body never located.

Kosden, 69, was reported missing Sept. 19, 2015, after he failed to return home after a planned trip to southeast Cochise County. His vehicle was found abandoned at Rustler Park with a parking pass, which showed he entered the campground Sept. 13.

Wall was last seen at his residence on County Road 2 in Double Springs, Alabama on January 25, 2015. He may have been sighted in the Bankhead National Forest in the vicinity of Houston, Alabama. He has never been heard from again.

Wall may have been involved in a serious physical altercation around the time he disappeared. Few details are available in his case.

Gerren was last seen at his home in Milwaukie, Oregon on December 2, 2014. He left to hike and camp in the Mount Hood National Forest on December 3rd, with plans to return by December 6th. He never returned. His vehicle was found at the parking lot for Frog Lake Campground. An extensive search of the area turned up no other signs of him.

Kenny Veach went missing near Nellis Air Force base in 2014. There has been searches for him, and one person believes they might have found the mysterious M cave that Kenny talked about in his videos.

Nelson was last seen in the Ventana Wilderness in thePfeiffer Big Sur State Park in California on August 6, 2014. He planned to go for a long hike in the forest and was supposed to return by August 16.

Donna's vehicle was located in Aug. 2014 in the Olympic National Forest near Neilton, WA. The vehicle was likely there for several months due to the vegetation that had grown up around the car. The keys to the vehicle were still inside along with camping and hiking gear. Donna, from Seattle, lost contact with family in April 2014.

Gallegos left her father’s Lakeside, Arizona residence on May 20, 2010. She got into a vehicle with two men, one of whom was Jacob Mata, and they went to Phoenix, Arizona to purchase heroin.

After the group bought the heroin, one of the men left and another woman joined Gallegos and Mata. They were on the way to Show Low, Arizona on State Route 87, when they got lost and ended up on a Forest Service road in the White Mountain Apache Forest.

Kristopher was last seen hiking in the Big Lava Beds near Goose Lake area of Gifford Pinchot National Forest.

Subjects Vehicle Located at Niagara Falls State Park.

Subjects Vehicle Located at Niagara Falls State Park.

On Saturday, August 18th, 2012, Heather Cameron called 911 from the area of the Keswick Dam OHV Park. A search was conducted of this remote mountain area accessible by OHV vehicles. Heather was not located.

Michael Lemaitre was last seen on July 4th, 2012 in the Mount Marathon race in Seward, Alaska. He was wearing black shorts and a black shirt. The case remains unsolved and Michael is still considered to be a missing person by the Alaska State Troopers.

Buenfil and an acquaintance, Terry Kenneth McDowell, were driving in the Big Scrub area of the Ocala National Forest on December 27, 2011. At 3:00 p.m., the vehicle became stuck in the sand on Railroad Grade Road just south of Forest Road 14. Buenfil walked south to get help, and has never been heard from again.

Sawyer was last seen at a remote campground in the Flamingo area at Everglades National Park in Monroe County, Florida on March 5, 2011.

William Ewasko of Marietta, Georgia was last seen on June 24, 2010 in the Joshua Tree National Park area. He planned to hike alone in the Joshua Tree National Park and was considered an experienced hiker and had hiked the area several times before.

Gallegos left her father’s Lakeside, Arizona residence on May 20, 2010. She got into a vehicle with two men, one of whom was Jacob Mata, and they went to Phoenix, Arizona to purchase heroin.

After the group bought the heroin, one of the men left and another woman joined Gallegos and Mata. They were on the way to Show Low, Arizona on State Route 87, when they got lost and ended up on a Forest Service road in the White Mountain Apache Forest.

Young was last seen in San Luis Obispo County, California on April 28, 2010. He left for a camping trip at Plaskett Creek Campground in the Los Padres National Forest and was expected to return a few days later, but never did.

Truitt was last seen by her roommate at their residence in Alameda, California on January 6, 2010. She has never been heard from again. On January 9, her tan 2003 Ford Ranger pickup truck with a bed liner and the California license plate number 7C23799 was found by federal park rangers at McClure’s Beach at Point Reyes National Seashore in Marin County, California.