A man accused of attacking twelve San Diegans, a majority of whom were homeless, in a 2016 crime spree has been found not competent to stand trial.
Jon David Guerrero, 39, faces four murder charges, three attempted or premeditated murder charges, two arson charges and five assault charges in attacks on several homeless people and other San Diego residents, some of whom were killed with railroad spikes. He is being held without bail.
On Wednesday, Guerrero was found not competent to stand trial. He will be sent to Patton State Hospital for treatment until he is competent to stand trial. It may be months, or years, before he stands trial on the charges.
Prosecutors say Guerrero attacked a dozen people throughout San Diego in a spree that began on July 3, 2016.
Angelo de Nardo, 53, was found badly burned near train tracks in Bay Ho. Investigators say they believe the homeless man died before he was set on fire.
On July 4, two homeless men were discovered attacked within an hour of each other in Bay Ho and Ocean Beach in the early hours of morning around 5 a.m. and 6 a.m. They both suffered severe trauma to the upper body.
One 61-year-old victim survived the attack. However, 41-year-old Shawn Longley died from his injuries.
Two days later, San Diego police found 23-year-old Derek Vahidy in Pantoja Park near State and G Streets. Vahidy had been beaten and set on fire, police said. He later died in the hospital.
Guerrero was arrested on July 15 after a fifth man was attacked at 18th and C streets.
In December, Guerrero was also charged in the July 13 attack of an elderly woman: 83-year-old Molly Simons. However, unlike Guerrero's other victims, Simons was not homeless.
The 83-year-old woman was found beaten on July 13 near Arizona Street and University Avenue as she was walking to a nearby bus stop to volunteer at a local YMCA, according to her autopsy report. She died at the hospital.
Previously, at his arraignment, a judge ordered news organizations to tile Guerrero's face as the DA's office continues to investigate possible assault cases for connections.