UPDATED 2:02 p.m.
Wilmington Police Chief Robert Tracy says two people were practically jumping out of the Acura that hit the bus, before impact. And, he says, witnesses saw one of them with a gun in his waistband.
"We know two people bailed from that vehicle," Tracy said. "We had witnesses saying that he was jumping out of the vehicle as it was hitting the bus. This is a desparate individual. We don't know whether it was him or someone else just as dangerous that had a firearm, that could be in that neighborhood right now."
Philadelphia Police have been able to identify one person involved in the incident: 20-year old Dejuan Robinson, who remains on the loose, and was wanted for questioning in connection with two murders. Police had a warrant out for him on a firearms violation.
Authorities say he slipped away from Wilmington cops Wednesday morning and was last seen running from the intersection of Broad Street and Oregon Avenue.
Robinson was not apprehended, but they believe it was him, along with another man. Tracy also said two more passengers were left behind in the vehicle, but no one was rounded up.
"In your hot pursuit, you can continue across state lines, on felonies," Tracy said.
Tracy said it depends on the level of felony, and whether it was justified.
"Could it be a training issue, or discipline. I'm waiting to see all of those things come into place. I don't want to make a comment, because of the rights of the officers, right now at this point," he said.
"I'll take a look at the actions of the officers and the totality of what happened," Tracy said. "When you do get into pursuits, this is something that we keep in mind, that this is the type of thing could happen. Thank God nobody is more seriously hurt than what happened."
Police say Robinson has some parole violations and they want to talk to him about two homicides.
"We will be talking to them again to see if they have any additional information that'll help us with regard to locating him," Ross said. "Anyone he may be affilliated with in the Philadelphia area."
This is not the first time Robinson has run away from police. In 2015, he escaped from a Wilmington juvenile corrections van by kicking out the back window, according to police. He was 17 years old at the time. Delaware authorities say he previously was convicted of gang participation and firearms violations.