“If Mateen engaged the cop at the outset of shooting and the cop stayed in the fight, how did Mateen alone shoot 100+ people?”
The answer is simple: he wasn’t the only shooter.
According to a witness who, playing dead, overheard Mateen talking on the phone say there were a total of four (4) shooters (in the nightclub).
And someone heard him talking to a woman. At the very least someone driving a getaway car had to be nearby. My initial guess was he runs in gun a blazing, kills as many as he can, as he heads towards that employee door in the back. He was supposed to escape out that narrow alley and jump into the getaway car. Unfortunately for him one of the terrified club goers blocked or locked that escape door.
I’ve been saying that there was more than one shooter since that Sunday morning, but can’t find anything that even hints at more than Mateen. Do you have a link or reference to that witness statement?
It is plausible that some people were hit by bullets fired by police.