Police outpost On the night of 10–11 February 1957, William committed a second spree killing. Just after midnight, William came into work at the Malampaka police post, located outside of the main residential area. He asked two superior officers,
Sergeant Clement and
Corporal Opiyo, to accompany him into town, asking them to help in the arrest of "a man with several
diamonds". The officers walked outside in single file fashion with Clement at the front and William in the back. During the trek into town, William struck Opiyo in the back of the head, causing the latter to lose consciousness for about 15 minutes. Upon awakening, Opiyo found Clement and William gone. Opiyo headed back towards the post to get other askaris to aid in search of the sergeant. The death toll rose to 16 the following day, with unconfirmed reports of 32 injured. marking the 32nd fatality per official announcement on 13 February. Between 14 and 16 February, William attacked several isolated homes surrounding Malampaka. Police determined that William ambushed the occupants and would steal their clothes and food before setting the huts and
outbuildings on fire and fleeing again. In these attacks, four people were killed by gunshots or
slashes, bringing the final fatality count to 36.
Victims 31 people were killed in Malampaka, with eleven of the victims killed in close vicinity of the police post. The coroner's statement initially reported the number of people killed by William to 37, and that William stole the key to the armoury from her. ==Manhunt==