Lori Gilbert-Kaye had been a member of Chabad of Poway for years. In the seconds between the gunman entering and the first shot, she moved toward Rabbi Goldstein rather than away from the door. Whether the motion was instinctive or deliberate, witnesses could not fully say — things happen faster than decision-making allows. What is clear is that she was struck first, and that the rabbi survived. Goldstein later wrote in The New York Times that her act saved his life. He spoke to his wounded congregation from the bimah before leaving for surgery. In December 2019, the city of Poway renamed a street Lori Lynn Lane in her memory. The street sign stands near a neighborhood she knew.

A month before Passover, on March 24, 2019, the same attacker had attempted to burn down the Dar-ul-Arqam mosque in Escondido, thirty miles north of downtown San Diego. Seven people were inside that night; one smelled smoke in time to alert the others. The fire was extinguished before the building sustained major damage. No one was hurt. Police found graffiti in the parking lot referencing the Christchurch mosque attacks, which had occurred days earlier. Investigators identified the arson as a hate crime. The connection between the two attacks would not become clear until after Poway. The shooter had been radicalized over approximately eighteen months, prosecutors later determined. Two nursing students had reported his expressed views to a professor before the synagogue attack. Because he had made no direct criminal threats, no arrest was made.

John Timothy Earnest was nineteen years old on April 27, 2019, a nursing student at California State University San Marcos with no prior criminal record. He was arrested two miles from Chabad of Poway. On September 30, 2021, a state court sentenced him to life in prison without the possibility of parole, plus an additional 121 years to life and 16 more years. On December 28, 2021, a federal court added life in prison with no chance of parole, plus 30 years. Senior U.S. District Judge Anthony Battaglia specified that the federal and state life sentences would run consecutively — one after the other — rather than concurrently. The effect was the same regardless; Earnest will die in prison. His parents issued a statement four days after the shooting: "To our great shame, he is now part of the history of evil that has been perpetrated on Jewish people for centuries."

In the months following the attack, the California State Legislature passed AB 1548, establishing the California State Nonprofit Security Grant Program, awarding up to $200,000 per year to religious and mission-based institutions at risk. The state allocated $12 million to the program in 2019. Rabbi Goldstein was invited to address the UN General Assembly on antisemitism in June of that year. The congregation at Chabad of Poway returned to its building. They held services. The Passover tables were put away, and then, the following year, they were set again. What a community does after violence is largely what it was doing before — gathering, observing, marking time — except that the gathering becomes, itself, an act of insistence.