A young U.S. Marine has been declared brain dead Sunday after getting shot in the back of the head in South Los Angeles, L.A. police officials said.

According to LAPD Media Relations officials, Carlos Segovia was shot once in the head near 31st Street and Western Avenue at about 11:30 p.m. Friday. Police said a vehicle pulled up beside his, and a suspect or suspects opened fire.

Segovia was not in uniform when he was shot, according to authorities. The family of Segovia contacted ABC7 using the hashtag #abc7eyewitness and said the 19-year-old was home on military leave.

For several years, Segovia volunteered for a group that feeds the homeless, and six months ago, he became a U.S. Marine to serve his country, his family said.

Read More- ABC 7

Image courtesy of Facebook: Laurie Mitchell/Claudia Perez