SACRAMENTO, Calif. (AP) _ A jilted lover who was shot to death after gunning down his former girlfriend and her fiance's son may have been involved in murders in several other states, sheriff's officers said Tuesday.

Lt. Jan Hoganson said the slain gunman, Ronnie Solida, was ''a suspect in several murders,'' but provided few details.

''I define 'several' as three or more murders,'' Hoganson said. ''The states are somewhere east of California,'' he said, adding that other law enforcement agencies had told Sacramento authorities that Solida was under investigation in their areas.

''His (Solida's) name popped up in several investigations,'' Hoganson said.

Solida broke into a home in rural Wilton, about 20 miles southeast of Sacramento, early Monday. Officers said he killed his ex-girlfriend, Vikki Hahne, wounded Hahne's fiance, Ray Sterger, and killed Sterger's 19-year-old son, Scott, officers said.

Solida, 36, was shot in the head by Sterger's 14-year-old son, Jeremy, who hid in his bedroom and opened fire on the intruder from behind the door. Moments later, Ray Sterger, wounded in the left cheek, fired a final round into Solida when he heard the intruder groan, according to Jeremy Sterger.

Ray Sterger was in fair condition Tuesday at a Sacramento hospital.

Sheriffs Lt. Ray Biondi said jealousy appeared to be the motive in the shootings.

''A couple of weeks ago, Ronnie told Vikki he was going to kill her,'' a co-worker of Sterger's told the Sacramento Bee. The co-worker said Sterger, a credit manager at a car dealership, and Hahne didn't think Solida was serious.

''They all knew each other, and Vikki and Ray had just learned to live with Ronnie's threats,'' the Sacramento Union quoted a source as saying.

Friends said Hahne, 26, and Sterger, 44, lived together for six years until they broke up last year. Hahne, a bartender, went to Kansas to live with Solida, the Union said.

Hahne and Solida lived together in Hutchinson for nine months before they broke up and Hahne went back to Sterger, the newspaper said. The couple planned to marry in August, sheriff's officers said.

''Everyone knew Ronnie had a violet temper. I know he was pretty upset when Vikki went back to Ray,'' the Union quoted an unidentified friend of Solida as saying.

Sheriff's officers said Solida was carrying several guns when he entered the Sterger home about 1 a.m. Monday. Officers found more guns, explosives, an anarchist's handbook with details for bomb-making and a motel room key in a car parked near the Sterger residence.

Biondi said officers traced the key to a motel in Stockton, 45 miles south of Sacramento. Sheriff's Detective Bob Bell said Solida had been registered there since July 11.

Officers found two blasting caps, clothing, a checkbook and other personal items belonging to Solida in the motel room, Bell said.