. >> reporter: sociologist chris marsh. >> for the most part where we saw the hotbed of the rodney kingent back in that community. >> reporter: nor was there much reinvestment in baltimore's affected neighborhoods after the eight-day uprising in 1968. >> so much was left not rebuilt. >> reporter: if the effects of the last riots are left to see why would baltimore's inner-city trash their neighborhoods yet again, even if only for one night thus far? >> some people are looting because that's their mentality, but others feel like áy're making a statement, we want to be heard. understand what i'm saying? >> reporter: terrence rogers, a minister in training under pastor hickman as are darian right and wes johnson. >> people feeling like they can succeed or get above. when they're at that boiling point and it comes to them lashing out, what's the worst that can happen? it's already falling down around them. it's like we're all living in this dump or this war zone. >> reporter: and yet barely two miles away, baltimore has been booming. >> over there is a four seasons hotelment you'll see a cr

chris. >> rene marsh and i are here getting new details about the investigation.re going to give you the latest developments on what happened when this train went off the tracks here in philadelphia. stay with us because federal investigators are still working the scene very hard. there are hundreds of rescues out there still to be done. they still have accounted for anybody. we're going to get you caught up on the investigation and the latest rene marsh and i. stay with us. >> it is a level 3 mass casualty incident. >> crawl forward, sir. strong can heal from miles away. unite us for a common good. and turn a simple video into endless laughter. strong can take you... all the way to the summit. oh my! so cool! think what strong can do for you. can i play too? at&t's network has the nation's strongest 4g lte signal. making a fist something we do to show resolve. to defend ourselves. to declare victory. so cvs health provides expert support and vital medicines. at our infusion centers or in patients homes. we help them fight the good fight. cvs health, because healt

marsh. those are the two big questions investigatively this morning. what do we know on them? >> well you mentioned this, chris. we know that investigators are itching to ask this engineer even more questions beyond that initial comment that he made that he didn't recall his speed. investigators haven't been able to get anything else from him. he is now lawyered up. but we do know that the engineer his name is brandon bostian. he's 32 years old. he's from new york. we know that he has been an amtrak engineer since 2010. and before that he was an amtrak conductor. but not only officials here in philadelphia wants to speak to him, but the ntsb wants to speak to him as well as they piece together what happened in the minutes and seconds before this train derails. these are the tracks we're talking about. this is where it all happened. we know from the ntsb that this particular stretch of track where this derailment happened was not equipped with an automated speed control system which is commonly known as positive train control. we know there are other sections of the northeast corridor that does have this techno