A clerk yelled at him and he put on an amazing burst of speed toward the door which he bounced off of (Those doors look open from thirty feet away- no door handles). Two bag boys and two customers tackled him as he tried to get up, One of the customers looked like he worked out a lot. The thief trhrew them all off and leaped up toward the door again and bounced off again. Repeat twice more.
Finally a very very large fellow came out from the back and when the thief was flat again Big Guy sat on him and it was still a struggle to keep him in check. A police car rode up right then and Big Guy had to hold him down until he was cuffed. I don't know what the fellow was on but it certainly gave him some strength, or amazing leverage or something.
Sounds like meth or PCP.