Purpy

This guy haunts the streets at night time. Several cases of missing people walking on the streets at night time have been reported. The government has sent the police to investigate right away, and only one returned, and he was severely injured, but he managed to take a picture of this monster's body. He has given it the name Purpy, for it having purple skin. The police are trying to figure out a plan to stop this beast, but as more of them try to stop it, the more cases of missing people have gone reported. Until when will this continue?