There’s still that whole “he starting shooting” thing. Unless JEG fucked that up, which is entirely plausible.
The whole sentence is a grammatical clusterfuck. I’m pretty sure the way it’s written would mean that the girls had a gun pointed at the guy. But the tenses are all fucked up too. This is about the best way that I can think of to salvage it:
“Alexis and I were left at gunpoint in the car with him, then he started shooting,”
Wow.
But +1 to their shitty grammar.