conversation about these weekly events involving the murder of dozens of people with legally obtained guns. if that is what our laws stand for, then i think we need to reexamine the laws. that is the mayor of highland park. tom llamas as more. reporter: from every angle, chaos, confusion, and carnage. a july 4th celebration through the center of town transformed into a mass casualty incident. active shooter call at highland park. police say the gunman took a sniper like position firing on to the parade from a roof using a high powered rifle. i picked up my kids and we ran again. i put them in the garbage dumpster and then i ran back to look for my partner and her daughter, and then i saw people shot on the ground. the attack sending crowds scrambling, panic parents trying to protect children. just this horrific pow pow pow. and then you heard people screamings, bodies down. run for your live. that is what i heard. dr. david bomb along with dr. lawrence schecht
just this horrific pow pow pow. and then you heard people screamings, bodies down. run for your live. that is what i heard. dr. david bomb along with dr. lawrence schechter were at the parade with their families initially running for safety, then turning back around and treating the wounded. all of a sudden there was a stampede of people coming and then i realized it was gunshots and i just thought to myself, this is how it is going to end end. six people shot and kill and more than 30 injured, the doctors couldn t believe what they were seeing. it was quite a horrific scene. as first responders tried to save lives, authorities launched a county wide dragnet looking for the shooter. more than eight hours later a north chicago police officer spotted the person they were looking for. attempted a traffic stop before the man led police on a short pursuit. this video appears to show the man who police say could be a