I just killed my first player in solos, being the aggressor.

I was looting in Stella night raid, I'm in really friendly lobbies but get shot at every now and again. A guy was looting the security key room and I said I'd clean up the scraps. Left him to it. I was doing a naked run, found a broken stitcher in a case with 20 bullets and had a fireball burner. The guy who unlocked the room left and as I went and closed the door another naked raider came in. I said it was mine, no reply. He started looting. I tossed a fireball burner at him and gunned him down. Knocked him out quick, looted the room and I was gone.

It felt excellent.