Not literally, unless you mean figuratively literally.

The outrage was already sparked. That's why he got shot.

I've seen plenty of outrage.

It's just all targeted at the insurance companies.

I think you're misreading this sentence: I think it's clearly implying public outrage surrounding US health insurance, not about the killing itself. "The killing has sparked public outrage and dark humor on social media" pretty clearly implies to me that they mean the public outrage associated with the dark humor.

“Humor”

The only outrage I’ve seen is directed towards mods on various platforms for locking community discussion about this incident.

Lol, "humor"? People seem downright giddy, and it's not a joke at all.

I think it's been public outrage about health insurers tbh

"If there is any person in the town, who feels emotion caused by this man's death," said Scrooge quite agonised, "show that person to me, Spirit, I beseech you."

Sounds like a really roundabout way to get gun control but sure I'll take it.

The average citizen is cheering every location I’ve looked.

Weirdly, I've seen a few .ml usernames complaining about how killing people is always evil, and that we're evil for glorifying it

I'm outraged.... The way that healthcare companies decide who gets to live and who needs to die for profit.

We don't know what words were written on all the ammo he didn't fire, so maybe it was sheer coincidence.

Yep, I was previously in the "probably someone wronged by United but can't be 100% sure" camp, but now there's no way it could be interpreted as anything else. Someone sought justice and got it.

If he was shtupping your wife, what better way to direct suspicion away from you than to play into the angle that would give every American not on the Forbes list a motive?

It sure would be a shame if the 99% of New York state saw and heard nothing of interest about this guy.

From what I am seeing on a few platforms, there may not be much help from the public.

No way they’d risk him getting up on the stand

Defendants don’t get up on the stand if they want any chance of a not guilt verdict.

and even less likely they’d want to try their luck getting twelve people to convict.

It’s not so unlikely. It ought to be, but it isn’t.

I hope they don't catch him.

I think you're right. I'm sure it was loaded with delay, deny, defend, depose.

He was using a suppressor that looks like it wasn't installed correctly and the gun jammed multiple times. Clearing those jams resulted in several unfired rounds being ejected onto the ground.

Just screwing a can onto a threaded barrel on a tilt-barrel automatic can keep the gun from cycling properly. You often need to have a special adapter between the barrel and the supressor for it to operate.