It wouldn't be a teen murder show without a few shady parents, and I Know What You Did Last Summer boasts quite a few. While Riley's pot-smoking, potty-mouthed mom sadly met her tragic end in Episode 6, it's Allison's dad Bruce who is continuing to raise eyebrows. Is he a good father trying his best despite awful circumstances...or is actually way more evil than we could have ever suspected?

We won't know for sure until I Know What You Did Last Summer finally reveals who is really behind the murders — and what they have to do with the death of Lennon one year ago — yet there are plenty of reasons to suspect that Bruce isn't as good as he claims to be. Whether or not he's the ultimate Big Bad of the show, here are just a few reasons why he very well could be involved with all this darkness.

He Clearly Had a Favorite Twin

There are plenty of good reasons for parents not to make it blatantly obvious that they have a favorite child, but what's particularly weird about Bruce's relationship with Allison and Lennon is that, for all we know about the twins, Lennon is definitely the bad one. She slept with her sister's longtime crush, used Allison's name to run her OnlyFans account, and routinely mocked her sister's grief over their mom's death.