screaming out the window to call 911 that he shot somebody. listen to this -- >> he said no i just shot george zimmerman. please call 911 really. i'm like, what? you shot george zimmerman? >> he said yes, sir, i shot zimmerman, please call 911. he got on the phone. he's like, my name is matt apperson i've been in a couple three disputes with this guy. he's driving down the street. he waived the gun at me. that's when i shot him. >> reporter: that was anderson cooper last night. you know since being acquitted of the murder of trayvon martin, zimmerman has had a number of run-ins with the law. july, 2013 he was stopped for speeding. november 2013 charged with felony assault and domestic violence battery after allegedly pointing a shotgun at his girlfriend. september, 2014 allegedly threat tones kill a man during a road rage incident. and just in january of this year arrested on a domestic violence complaint. in all fairness some of the