From ABC 7 Detroit:
The Grim Creepers are proposing the Halloween revolt. They're part of an extremist group known by feds as the National Liberation Militia.Yes, cop lives matter.
Detroit Police Assistant Chief Steve Dolunt acknowledges the serious nature of the threat. He learned the group has encouraged members to wear Halloween masks and create a disturbance to lure in officers and then to use weapons on them - weapons such as bricks, bottles and firearms.