A gunman barged into a food services plant in Fresno, Calif., killing one and wounding three others before fatally shooting himself, police said.

Fox News reported that the gunman is 42-year-old Lawrence Jones, who was taken to the hospital in critical condition after suffering a self-inflicted gunshot wound to the head. He later died, according to ABC 30.

KMPH-TV reported that the shooting spree started at around 8:30 a.m. at Apple Valley Farms, which produces chicken meat products. The suspect forcefully entered the plant looking for a particular person. About 60 employees were said to be inside the building at the time of the shooting.

Jones, according to Fox News, fatally shot a 32-year-old male in the head and wounded a 34-year-old in the head, a 28-year-old male in the neck, and a 34-year-old woman in the lower back. All were transported to a nearby hospital.

Upon arriving at the scene, responders found Jones lying facedown with a handgun next to him.

Employees of the facility told police that Jones did not appear to be himself that day, though they’re unsure of what provoked the shooting.

Fresno Police Chief Jerry Dyer said Jones has an extensive criminal history. According to a witness, Jones was recently released from prison.