It wasn’t much — a makeshift sign that read “Stop the Violence” — but a day after a shooting left one woman dead and three other people in critical condition, the little sign was filling up with scrawled messages.

“RIP Mariela, U will never be forgotten,” said one message on the sign, which hung above two votive candles. “Lost a friend but gained an angel.”

Jaime Paredes, who is suspected of killing his wife and injuring four other people, has been booked into Ventura County Jail where he is expected to face charges of murder. Bail has been set at $3 million. He is due to make his first court appearance Monday.

In what police are calling a domestic dispute, a man opened fire Wednesday in the crowded offices of Family Dental Care in Simi Valley, killing one woman and wounding four other people, three critically.

The man — in shorts, no shirt and with a shaved head — surrendered to police an hour after the first shots were fired about 10:30 a.m., after talking on the phone with a police hostage negotiator, said Simi Valley Police Department Sgt. Dwight Thompson.