Morales was responsible for the care of both family members.
The Canoga Park man is being held without bail. The Los Angeles County District Attorney's Office has not decided whether to seek the death penalty against Morales.
Man charged with killing mother and uncle
VAN NUYS, Calif. Investigators say Morales is suspected of killing his mother, Rita Morales, 87 and uncle, Manuel Reyes, 85, a double amputee on April 30 using a hammer.
