Break down of the video for anyone interested, because I know a lot of people don't want to watch the video and I don't blame them:

start to 6:00 - he is driving his car, guns sitting in the passenger seat

6:15 - grabs guns from trunk, begins to walk inside

6:35 - walks up to entrance, shoots first person in doorway without any hesitation

7:04 - rapid firing at everyone, approx 15 dead at this point, walking through main hallway

7:05 - one guy tries to actually stop him, bare handed and is shot point-blank

7:30 - reloads for the 3rd time, but walks backward to pick up a magazine he apparently dropped on the ground and uses it to reload

7:50 - gun jams, he clears the jam and reloads, then continues to fire at the unmoving piles of bodies already on the ground, now totaling about 30 people. No one alive is visible, blood is clearly pooling under some of them and the bodies are obviously getting hit by bullets

8:45 - he runs out of the mosque, out of targets to shoot, apparently

9:00 - he gets out to the sidewalk where his hatchback is parked in an alleyway. He fires down both sidewalk directions, but there doesn't seem to be anyone there.

9:21 - he gets back to his car, puts the gun he was using in the trunk, grabs another gun that looks very similar. Then grabs a red gasoline can but almost immediately sets it back down. The bags the guns are covered by all say "Proudly Kiwi" and look new. The guns all have words written all over them in white dry-erase

9:50 - he begins pacing up and down the sidewalk, looking for targets, but not seeing any. He's just kind of blindly shooting at very distant targets down the sidewalk but I don't actually see anyone.

10:10 - he says "[something] get the bird these days, boys" then fires more shots down some alleyways connected to the sidewalk, at nothing

10:20 - he re-enters the mosque. The bodies have leaked a lot of blood, no one is moving except immediately after being shot, he shoots almost every single body at least one more time, one by one.

11:52 - he runs back out to the sidewalk. The woman he shot in the street earlier is screaming "help me" over and over, he shoots her twice and they very obviously connect (definitely not blanks)

12:17 - gets back in the car, driving over the woman he just shot to pull out of the alleyway

12:35 - he says something to the livestream, laughs comfortably, and begins to add the next mosque's location in his GPS mounted to his windshield as he drives

12:50 - while driving, he pulls out a shotgun and shoots through the front windshield twice, but the windshield does not break or get a hole in it? I am particularly confused about this moment

13:14 - he then again reloads the shotgun, and fires directly in to his own front windshield, at other cars on the road parked on the side of the road that do not appear to have people in them. But the shotgun is clearly detonating, so I do not understand why the window is not breaking and no bullets seem to be coming out. Shotgun blanks? I think even blanks would break a window though when the end of the muzzle is literally touching the window and he fires 4 separate times and the gun clearly goes off.

13:18 - Then without putting in more shells, he stops the car, turns his body and shoots the shotgun out the passenger side window. The whole side window explodes, as you'd expect the front windshield to have done. Then he takes a shot at seeming nothing through the broken window, but he's out of ammo and it clicks empty. He puts down the gun on the passenger seat and resumes driving.

13:49 - he adjusts the car radio?

14:09 - stops for pedestrians, then honks when they're taking too long

14:20 - says "they've got that instantly" or something and laughs and then says something like like "tension and ease of access, if you give people easy access you can't fuck yourself" in a very lighthearted tone. I can't really understand what he is saying.

14:45 - says something like "It's time for a funeral" "Shit happens" "There were so many people parked at the carpark there" and a few other things. Then he just keeps driving and talking to himself while peppy techno music plays in the background.

Video ends at 16:55. No indication he ended it intentionally, it just abruptly cuts off.