Police say the death of 53-year-old James Butler in Whanganui on Sunday was not the reuslt of a random attack.
"The people in this incident are known to each other," a spokesperson said.
Butler was found dead after emergency services were called to a Wikitoria Rd house just before 7pm.
Police would not say if they were looking for a specific person but no one has been arrested.
"At this stage we can add nothing further for operational reasons."