before the attack and brought it to california. authorities have ruled out that this was purchased illegally. the other question is was this person known to law enforcement. we're told he was not what they call a prohibited purchaser with this weapon, which means he wasn't a violent felon. there were no warning signs from the legal side to stop him. the question will be whether there were others who knew him who could have come to authorities beforehand. >> that has to be the last word, josh, thank you, wesley, appreciate it as well. next, everything to watch for in our cnn presidential debates kicking off tomorrow night at 8:00 eastern. (inhale, exhale) air wick you don't live in one corner.