This is a concept for an explained SCP
The idea is that the Foundation discovers security camera footage of a blob-like monster murdering women at night. They send a PTF out to find the monster, but come up empty handed. Eventually, the analyze a corpse and discover sperm cells in the body, and discovered the true identity of the murderer: an escaped D-class that wanted to create a fake SCP to waste the foundation's time and resources as revenge, while also using the fact that it hid his identity to rape and murder several women. The monster was projected over the screens of the security footage to hide his identity
What do you think?