A man was accused of cutting off a teen's air supply amid a dispute over a lobster dive spot. Shortly after, a Contender arrived and placed itself near the operator's boat, the report said. Simpson, the report said, was then seen swimming over to the Brownie and turning it off, which cut the victim's air supply. Cellphone video captured Simpson swimming back to his boat after the air supply was shut off, before the boat left the area. If somebody is in your spot, you didn't buy the spot, you don't own the spot," Zimmer said.