[color=blue]1-He came into the room pointing his gun at me.
[color=indigo]2-He came into the room, pointing his gun at me.
[color=red]3-He came into the room, his gun pointing at me.
In which case:
a-He is pointing his gun at me and coming into the
room simultaneously
b-He points his gun at me after coming into the room
c-We can’t tell
Gratefully,
Navi.