A 53-year-old man who was arrested last night on a warrant for assault has been charged with second-degree murder in connection with the death of a 19-year-old Oshawa man at a rooming house in January, according to Durham police.

Hamilton Police Service and the OPP arrested the man around 11 p.m. Thursday on a GO Transit bus on its way to Union station.

The bus was pulled over on the Gardiner Expressway near Kipling Avenue, where passengers say the driver exited the vehicle, leaving them locked on the bus with the suspect for nearly half an hour before he was arrested.

Some passengers took to social media at the time of the arrest to voice their displeasure with the situation.

"Why lock us in the GO Bus for 25 minutes with a man charged with murder, realizing it's gameover..?" one person tweeted.

Anne Marie Aikins of Metrolinx — the agency that runs GO Transit — confirmed passengers spent 25 minutes locked inside a GO bus with a man who police later took into custody.  

"I'm sure they expected a sleepy ride into the city and instead had a very harrowing experience that clearly is still upsetting them today," she said. "That's really quite unfortunate. Some information would certainly have been helpful to them, but decisions get made and I'm not sure of the rationale for the decision."

Aikins said the bus was on a major highway when a number of police cruisers appeared and pulled the driver over.

The driver was instructed to get off the bus and lock the door, keeping passengers inside, she said.

Passengers said the man, who they believed to be intoxicated, tried unsuccessfully to get off the bus. When that didn't work, he reportedly sat down at the front of the bus and lit up a cigarette to the consternation of fellow passengers, Aikins said.

"Our Durham detectives arrived on scene while the bus was stopped and arrested the male without incident," said Sgt. Bill Calder. 

The suspect also had an outstanding warrant for an assault in Durham region. Police are not looking for any other suspects.

With files from Canadian Press