Shukran Karisa Mangi always showed up drunk at work, where he dug up the bodies of doomsday cult members buried in shallow graves. But the alcohol couldn’t numb his shock the morning he found the body of a close friend, whose neck had been twisted so severely that his head and torso faced opposite directions.

This violent death upset Mangi, who had already unearthed children’s bodies. The number of bodies kept rising in this community off Kenya’s coastline where extremist evangelical leader Paul Mackenzie is accused of instructing his followers to starve to death for the opportunity to meet Jesus.

In one of the deadliest cult-related massacres ever, at least 436 bodies have been recovered since police raided Good News International Church in a forest some 70 kilometers (40 miles) inland from the coastal town of Malindi. Seventeen months later, many in the area are still shaken by what happened despite repeated warnings about the church’s leader.