Scream doing a poor job at making the cop character the killer

Dewey technically could have been a killer in 1, but so unlikely. Mark could have been a killer in 3, would have been interesting. Making Judy a crazy killer in 4 would have been a waste, but they wasted her in 5 anyways. Detective Bailey being a GF in 6 was highly predictable and lame. I don't know why Scream can't seem to land a good evil cop plot. Funnily enough the first Scary Movie, movie did a way better job lol.