aaron baskerville was in center city earlier today with more on their message. they're fighting back against police brutality. some had their faces covered. many wanted nothing to do with our camera. >> no cameras. >> talk to one of the organizers. >> reporter: they who talk to me. >> then i won't, either. >> reporter: no comments? >> no. >> minorities groups get no due respect and no one is held accountable for when lives are taken. >> reporter: a wall of officers was there in case. some of the crowd angry and confused at this democrat station. >> martin lew irking stood for something. what do you stand for? what are you doing? >> reporter: officers from around the world are in town for the international association of chiefs of police conference. they too took in all the sights and sounds. >> let them have their conversation right now. i'm from another state, the dialogue they need to have is they need dialogue and relationships with their police department. >> reporter: this conference will continue throughout the weekend. that's when the attorney general spe

aaron baskerville. nbc10 news. >> quick question. did the workers give you any idea of why this may have happened? any idea of a motive here? >> reporter: that's what was so shocking. they had no idea. they said they've come across him before, didn't notice anything unusual or different. and they were shocked. all of a sudden, of course, he just pulls out his gun and starts shooting. they have no idea why he did it. they don't know who he was targeting, if he was targeting anyone at all. the four coworkers are really happy they got away with their lives. >> aaron baskerville reporting live in maryland. >>> team coverage continues now with nbc10's lauren mayk, joining us live in wilmington. >> within the hour investigators wrapped up a news conference. lauren, bring us up to date. >> reporter: the focus now is finding this man. the police chief warning anyone who may be helping him that he is dangerous. and given what we saw today, that he has no conscience. >> this person is still dangerous. he is armed. he is desperate. >> reporter:

live in edgewood, aaron baskerville. nbc10 news. >>> the nbc10 investigators looked into the suspect's past and found he has a long rap sheet with more than 40 arrests. >> radee prince is accused of shooting his coworkers at advanced granite solutions. he has only worked there for the past four months. the company designs and installs countertops. he was scheduled to work today. police say he showed up and shot his coworkers. authorities revealed prince does have a criminal record in maryland and delaware. he has been arrested 42 times in delaware. it appears he was first arrested back in 2003. then in 2015 he was charged with having a gun in his car illegally. the fbi considers him armed and dangerous. the suspect's suv is a black 2008 gmc acadia. it has a delaware license plate with the number pc64273. >>> police say he took that acadia from maryland to delaware where he shot the owner of an auto dealership. we are told the victim did know the shooter. >> right now he is in the hospital recovering from two gunshot woun

. >> aaron baskerville is live in edgewood, maryland, you just spoke to the witness who was inside theing when the shooting happened. >> reporter: i had the chance to talk to four different witnesses, four workers who were inside advanced granite solutions earlier this morning when the gunman fired shots. right now we are outside of the richland ballroom, the staging area for families of workers who were inside this morning around 9:00. to this photo. four of these workers wanted to share this photo. this is oscar hidago. he lost his life this morning when the gunman fired shots. the four coworkers i talked to literally 20 minutes ago tell me they were about ten feet away from the shooter when he pulled his gun and