"He was very, very disappointed that there's been no arrest made as yet, " Kakas said.

NPR: Accused Witch Burned Alive In Papua New Guinea

Kakas said onlookers were shocked by the brutality but were powerless to stop the mob.

NPR: Accused Witch Burned Alive In Papua New Guinea

Kakas described the victim's husband as the "prime suspect" and said the man fled the province.

NPR: Accused Witch Burned Alive In Papua New Guinea

Kakas said he did not know if there was a relationship between the husband and the dead boy's family.

NPR: Accused Witch Burned Alive In Papua New Guinea

The public were apparently not cooperating with police, and police carrying out the investigation were not working hard enough, Kakas said.

NPR: Accused Witch Burned Alive In Papua New Guinea

Deputy Police Commissioner Simon Kauba on Friday blasted Mount Hagen investigators by phone for failing to make a single arrest, Kakas said.

NPR: Accused Witch Burned Alive In Papua New Guinea

Kakas could not immediately say what had become of the 29 since their first court appearances last year in the north coast province of Madang.

NPR: Accused Witch Burned Alive In Papua New Guinea