John T. Earnest of Rancho Penasquitos pleaded guilty to 113 counts of hate crimes, the statement said. Prosecutors said the plea deal includes a recommended life sentence plus 30 years.
In addition to the attack on the synagogue on April 27, 2019, Earnest admitted to attempting to set fire to the Dar-ul-Arqam Mosque in Escondido, Calif. On March 24, 2019, the Justice Department said.
Prosecutors said they found a manifesto allegedly written by Earnest in which he wrote anti-Semitic and anti-Muslim statements, including “I can only kill a limited number of Jews” and “I only wish to kill more.”
Armed with a Smith & Wesson M&P 15 assault rifle, Earnest, who was 19 at the time, killed Lori Gilbert Kaye, 60, who was at the synagogue to honor her late mother, and injured her three others, including the rabbi and an 8-year-old girl.
They were among more than four dozen people inside the synagogue at the time.
In July, Earnest reached a plea deal on the charges against the state, accepting life in prison without parole on the murder and attempted murder charges. The deal spared him the death penalty.