How about spraying him with a fire hose?
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IIRC the body is in the doorway/area of the church,,,
A hose would work if they could blow the body away from the door area,,,
They gotta have a robot in this day and age,,,
Sooner or later I guess...
Most municipalities have access to the robots. I saw one that belonged to the WV State Police Bomb Squad recently. It was an extremely cool model that was made in England.
I am told there are three of these things in my state available on call 24-7.