A Georgia man who was videotaped last week shooting at a lawn mower packed with explosives lost his leg in the resulting explosion, authorities say.

According to the Walton County Sheriff’s Department, a deputy responded to a 911 call Saturday about an explosion. The caller reported that 32-year-old David Pressley was shooting at a mixture of ammonium nitrate and aluminum powder in the woods and "had possibly blown his legs off from the explosion."