Germany: Hells Angel kills cop thru locked door

n-tv
The state attorney will file an arrest warrant carrying Heimtuecke what is in English the intention to ambush

If "Heimtuecke" exists its no simple killing but attempted murder, in this case murder.
Police prepared a raid in Anhausen. The policeman was already in front of the door, though the raid hadnt yet been declared.

That was obviously a failure, id est the declaration came too late.