i'm bob borzotta. i sent you a letter. you happened to receive it yet. >> reporter: to interrupt for one second. instant replay please -- did you notice the hang time on that handshake? mitch finally did shake, but that was about the only progress. >> what is all this? >> this is for abc news. they follow me. well mr. whalen i wonder, maybe you'd just want to talk to me by myself? >> yeah, come on up here. >> reporter: borzotta says, off-camera, whalen complained about zimmerman's floodlights, loud parties and even the fact that she's a single mother. >> why is that his business? >> exactly, but he felt that it would be appropriate for him to comment. >> reporter: borzotta says whalen told him he just wants it all to stop. >> mitch repeatedly says to me, all he wants is to be left alone. >> reporter: but, but take a look at this surveillance video, it shows the "20/20" camera view leaving melissa zimmerman's house. less than 60 seconds later, there goes that nasty red laser beam again, shooting from whalen's house into zim