Yeremia Zanambani was shot dead last month, one of a series of killings in Papua's Intan Jaya regency.
The pastor was killed while tending to his pigs, two days after a pair of Indonesian soldiers were killed by what the team called an armed criminal group, the government's oft-used term for the West Papua Liberation Army.
The Liberation Army's guerilla fighters are engaged in ongoing conflict with Indonesia's military in Papua's rugged interior.
The team said it found indications that Indonesia's security forces were involved in the shooting of Pastor Zanambani.
