It was a wierd case as they usually, don't investigate stuff of this nature. With someone killing people with their car. Usually it is by guns, or by strangliation or something like that.
But after the second car killing, the BAU is summoned to help with the investigation. And one man thinks that he is responsible for the crime. Only to be assured by JJ, that he wasn't. And all of this guilt he has been carrying around with. Meanwhile, Kevin who, Garcia has been seeing for awhile. Says he might have to get another job and go overseas with the NSA. Though he can't tell her exactly where and a long-distance relationship could be hard. But he wants her to go with him. That leaves it wide open, whether she may break up with him or not!