207 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Case Description
Any updates on this case? Let us know!
Manuel Guadalupe Piñon, aged 48, tragically lost his life on October 5, 2011, in Cupertino, California. He was attending a routine safety meeting at the Lehigh Hanson Permanente Cement Plant when a disgruntled employee, Shareef Allman, opened fire on his coworkers. Allman, who was reportedly upset with his job, left the meeting, retrieved a .223-caliber semi-automatic rifle and a .40-caliber handgun from his car, and returned to the meeting to carry out the attack. The shooting resulted in the ...Read More
Victim Details

Manuel Guadalupe Piñon

Male

Cupertino

CA

2011-10-05

48

Manuel

Piñon

11/20/2025