in fact right after may was killed investigators quickly checked the backgrounds of more than 4,000 defendants to see if there was any connections. they didn t find any. now, they re taking a closer look and we will too from the video of a 7-eleven store that was three blocks away from where may was killed. police say this surveillance video appears to show possible witnesses, not suspects who were in the store just after the murder. at that time, police said talking with these people would be critical to the case. now they say it still is. the tape also revealedded the suv the killer is believed to have been driving and a black nissan frontier extended cab truck. investigators say that is key. they hope the driver of that nissan truck can help out with the case and maybe you can as well. there is $125,000 reward for information leading to the conviction in may s killing. call crimestoppers. we ll put the number on the screen. jenna, sean may s wife was six months pregnant, jenna