( CNN ) -- A suspect in the shooting of a Seattle , Washington , police officer is also believed to be behind the bombing of four police cars , Seattle Assistant Police Chief Jim Pugel said at a press conference Saturday . Christopher Monfort , 41 , remained hospitalized in serious condition after being shot by officers during a confrontation Friday . `` This man , from everything that we can tell , appears to be a lone domestic terrorist , '' Pugel said . Monfort was in custody at the hospital , but no charges had yet been filed , a Seattle police spokeswoman told CNN . Charges could be filed as early as Monday , she said . Police named Monfort as a suspect in the Halloween night killing of Officer Tim Brenton , who was shot while sitting in his patrol car . A student officer was injured in the attack . Investigators also suspect Monfort in the October 22 arson of four police vehicles with homemade explosives , Pugel said . On Friday , a tipster alerted police to the owner of a Datsun 210 who covered his car shortly after the shooting , Pugel said . While detectives walked near the residence , they came across Monfort , and after a brief questioning , Monfort pulled out a gun and aimed it at one of the officers , police said . Monfort pulled the trigger , and when the gun did n't go off , began to run , Pugel said . When Monfort turned around toward the police with the weapon again , the officers fired , he said . The local sheriff 's department would investigate the officer-involved shooting . Investigators found improvised explosive devices and two weapons , including a military assault rifle , inside Monfort 's apartment , Pugel said . The suspect 's car had not yet been searched . Brenton , 39 , a field training officer , was reviewing details of a traffic stop with student officer Brit Sweeney Saturday night when a vehicle rolled up next to the squad car shortly after 10 p.m. , authorities said . Several shots were fired into the squad car , killing Brenton and injuring Sweeney , according to police . The shooting was the first intentional homicide of a city police officer since 1994 , Seattle Mayor Greg Nickels said . Brenton was married with two children , 11 and 8 . He served on the force for nine years , police said . His father and uncle are retired Seattle police officers .
Suspect identified as Christopher Monfort , who was wounded by officers Friday . The 41-year-old suspect remained hospitalized in serious condition on Saturday . Monfort is suspected in the October 31 slaying of Officer Tim Brenton . Police have released a photo of an armed man they say shot and killed two police officers.