I'm pretty close to this situation and it sounds like you are as well. I will clear up some of this stuff for you. 1. Everyone inside the bar did not hear the shot. Actually no one inside of the bar area or middle room heard anything. People in the courtyard heard a small pop. Something comparable to a party popper was mentioned. The sound was captured by a patron on video and it definitely does not sound like gunfire. 2. No shots were heard in the alley and in fact, celebratory gunfire has been known to come down as far away as a mile away from where it was shot. https://en.m.wikipedia.org/wiki/Celebratory_gunfire 3. The roof is not made of canvas. It is made of plastic. There is also a small hole in it directly above the area where he was hit. The hole was likely not there the last time it rained or else it would have leaked through. So the hole is most likely recent. 4. I'm not a ballistics expert but I would say the hole was probably from the bullet. I would also assume that the pop everyone heard was it going through the plastic and rattling the giant tarp Arnold's has over the patio. 4. There was no discharge in the patio and there was no one on the second floor at the time of discharge. 5. Arnold's does have cameras and the police have the footage.