PORTLAND, Ore. (AP) — The murder trial for a Portland, Oregon, man charged with fatally stabbing two passengers and injuring another on a light-rail train has begun. Prosecutors told jurors Tuesday that other passengers thought the stabbing was a fist fight until they saw blood spurting from the victims’ necks. Jeremy Christian has pleaded not guilty to murder in the deaths of Ricky Best and Taliesin Namkai-Meche in 2017. A third passenger was severely injured. Prosecutors say Christian was shouting racist slurs and the men were trying to protect two young black women, including one wearing a Muslim head covering, when they were stabbed.