Bryan Sanchez, 21, was killed on November 21, 2012, in Atwater, California. He had last been seen alive on November 16, 2012, and his body was discovered five days later. Authorities have not identified suspects or significant leads, and the case remains unsolved.

Sanchez had been diagnosed with bipolar disorder and obsessive-compulsive disorder and struggled with social anxiety; family and investigators described him as having the mental capacity of a teenager, a vulnerability they say made his disappearance and death especially tragic. The Merced County Sheriff’s Investigation Bureau continues to ask the public for help, noting that even small details could produce critical leads.

If anyone has information about Bryan’s movements in Atwater in mid-November 2012 or anything unusual around November 16 to 21, please contact the Merced County Sheriff’s Investigation Bureau.