Towel

A towel is about the most massively useful thing when it comes to murder

Think about it!

Need a murder weapon? A towel can be great to strangle the life out of someone that's become a bit too bothersome.

Need a way to sop up all the blood that got everywhere? A good towel can clean all of it up real quick!

Need to get rid of the cumbersome dead body you found yourself in possession of? Use the towel to carry it away before it starts attracting flys.

Need to get rid of the towel? Well stick it in the wash with some bleach and you can reuse the towel, or just burn it!

Towels they are terribly useful!