Last month 25-year-old Lake Ethan Roberts stood at the edge of a rock quarry near Richmond, Missouri, and lit the fuse of a crude explosive device of his own design, according to federal authorities.
Then he tossed it in the quarry.
The device was made from a plastic single-serving “shooter” bottle filled with black powder, a fuse threaded through a hole in the aluminum cap, and had steel BBs wrapped around it with duct tape, recounts a federal affidavit…