He was anti-Semitic and anti-Trump.
Via Free Beacon:
POWAY, Calif. (Reuters) – A 19-year-old man who authorities said gave himself up to police shortly after carrying out a deadly shooting in a Southern California synagogue filled with Sabbath worshippers is also under investigation in connection with an unsolved mosque arson.
The gunman walked into the suburban San Diego synagogue late Saturday morning, the last day of the week-long Jewish holiday of Passover, and opened fire with an assault-style rifle, killing one woman inside and wounding three others, including the rabbi, authorities said.
He then sped away in a car, escaping an off-duty U.S. Border Patrol agent who shot at the getaway vehicle but missed the suspect, but the suspect pulled over and surrendered to police officers a short time later.