This guy wanted to be taken to the hospital after being shot. The bus driver refused, so perhaps the guy figured the driver will have to take him to the hospital if he needs to go there himself. 

According to FOX 2 Detroit, the man tried to run after stabbing the bus driver, but other passengers caught and held him until police arrived. The condition of the bus driver is unknown, the suspect is in custody in the hospital, and police are investigating the crimes.