however, they say that it was in a gun lock and that the host father was the only one with the key, he thought, of course. now we know otherwise. they say that they were completely taken off guard. now they also revealed details about the day of the shooting. take a listen. >> he told my son he was going to the movies, and he said he had something to tell him and my son pressed him, what is it, what is it and he goes he nothing bad, bro and that was it. he said he was going to the movies and then the last text my son got was, yo and that was it and that was about 2:18 i believe. >> do you have any idea why you think he texted your son? >> no idea. no idea. >> reporter: we are also learning more about the timeline where the suspect was when the day of the shooting. take a look at your screen. this is new surveillance video showing the suspect near the