Clackamas County Sheriff's Office deputies arrested 42-year-old Troy Edwin Robanske of Gresham on Friday after TriMet reported that a gun had discharged on a bus south of Milwaukie.
No one was injured after the bullet struck the floor, and initial reports indicate the shooting was likely not intentional.
Robanske was arrested on charges of being a convicted felon who was in possession of a firearm, unlawful use of a weapon and reckless endangering after he allegedly tried to hide the firearm in a restroom. The bus had previously picked up the male suspect who was carrying a small 14-by-5-inch case that appeared to carry a handgun.
According to TriMet officials, there were about 20-25 other riders on the Line 33 bus at the time the gun discharged.
CCSO spokesman Lt. Robert Wurpes said Robanske initially told deputies he did not have a gun just bullets that somehow went off inside of a case. Deputies continued to investigate and found a .380-caliber semi-automatic handgun nearby.
Around 11:40 a.m. Jan. 17, TriMet dispatch alerted authorities that a firearm had been discharged on a northbound bus near the intersection of McLoughlin Boulevard and Concord Road in unincorporated Milwaukie.
At one point, witnesses report, Robanske allegedly reached into the case and the gun went off. The round went into the floor of the bus.
The bus continued to the next stop along the 15700 block Southeast McLoughlin Boulevard. Once the bus stopped, Robanske reportedly exited.
CCSO deputies responded to the scene within a few minutes, but the suspect was not immediately located. A short time later near the intersection of McLoughlin and Rothe Road deputies located Robanske.
Transit police are currently continuing the investigation with CCSO. This includes a forensic examination of the discharged round in the floor of the bus.