Robert Glenn Bennett, 51, was last seen on February 16, 1983, in Los Angeles while working as a supervisor at the Whittier Narrows Sanitation Plant. He drove with a co-worker, John Alcantara, into a remote area near the plant and did not return; Bennett’s wife reported him missing that evening.

Investigators later found large amounts of blood and tire tracks in the area, which led to suspicions of foul play. Witnesses later stated Alcantara confessed to shooting Bennett in the head, dismembering the body, and disposing of the remains at the Puente Hills Landfill, but Bennett’s body was never recovered despite extensive searches.

Alcantara was charged with Bennett’s murder in 2005 and convicted in 2008, receiving a sentence of 25 years to life. Does anyone have memories of the Whittier Narrows plant or the Puente Hills Landfill from that period that could shed light on Bennett’s last known movements?