Doesn't seem like serial killer material to me. That would involve getting out of the house. Even if he managed that, almost no way he could resist the urge to tweet about it, which means he isn't making it to serial territory.
If I were Indy, I'd rather be dead than wake up every day knowing I shared a PBR with Sab while he was knuckle deep in my ass.
I'm pretty sure Indy furnishes his apartment solely with upside down stools in hopes of recreating that magical day.
Until this, I'd never seen a person over the age of 5 ask to take a picture with cheerleaders, mascots, dancers, etc. I like to think that the photo was taken just as he extended his arm to mock a smacking motion on the blonde's ass, and while grunting.