What if you find shooter's backpack ditched in park with jacket, gun, silencer, and fake ID used at hostel, but say it only had a jacket and monopoly money. And say that the guy probably left the state on a bus. Now you can pretty much do anything you want with any plausible-looking guy in the country you want.

I'm just asking questions! Also, most of the bags and purses you see for sale these days have a "faraday" phone bag or pocket in them, no level of sophistication required.

Assuming you're a US citzen:

1. Identiy that the fault is how we fund healthcare, not "government meddling" or "bad researchers".
2. Pick a major political party.
3. Register as a member and find out where your local meetings are.
4. Make clear that the ONLY issue you care about is fixing healthcare.
5. Volunteer, donate, or run if you can.
6. Vote in every general, primary, or special election for whomever makes fixing healthcare a priority. Spoil if you must, but VOTE.
7. Dont fall for lies.

Fixing healthcare funding is itself broadly popular, but since its inherently unprofitable to care for sick, disabled, or elderly people all possible fixes are either "socialism" or "die quickly"

Healthcare should be like roads or schools or calling the police, not like cars or contractors or hiring a lawyer.

Get involved with Mutual Aid groups.

Learn some basic First Aid.

Make connections with doctors and nurses who want to escape this broken system and get them involved with Mutual Aid groups.

This last part shouldn't be too hard, depending on where you live. I live in a progressive city with lots of doctors with good values who already do tons of charity work as it is. Getting them involved wouldn't be too difficult because they're likely already involved at some level. I've had doctors and dentists who volunteer at our free clinics for those without medical coverage, so it seems like taking the next step into Mutual Aid is probably something they're game for.

1. Saying "American Healthcare System" there's no such thing.

There are many, many disparate elements to medicine in the US. Understanding all those elements and how they relate is primary.

1. Civil War
2. Revolution
3. Societal Collapse
4. Tribal, post-apocalypse
5. Misinterpreted Bible leads to a few genocides
6. Someone rediscovers the light bulb
   Pick back up around Edison on our timeline...

You're looking at around 2350 or so, so... good healthcare sweet spot is likely to be around 2420, supposing you ended up somewhere in the future that isn't irradiated, or is irradiated in such a way that it regrows limbs, which could be good and bad.

If you're talking about working with what we've got, well... save some .PDFs in the war truck.

Two ways forward.

1: Universal healthcare as seen in Canada.
2: Private heath coverage with strict price controls set by the government as seen in Japan.

I know it may sound callous, but if you have skills. A lot of countries are looking to fill skill shortages, you could emigrate to somewhere with a sensible health system.

Failing that, as someone else pointed out. Grassroots action!
Get involved, change the narrative build up from local level. Shooting CEO's is not a long term solution, yes it grabbed attention, yes it showed how fucked off the population really is.... build on that momentum.

Right now the US is basically a two-party system with both parties bribbed by the same health insurance companies. The will of the people demands change, yet both parties refuse to implement change.

Withholding your vote does nothing as it's essentially a two-party system. Voting for one party or the other does nothing as they're both paid off by the same health insurance companies.

In desperate times when the government no longer represents the people, people turn to vigilantism to solve ongoing problems, as we saw with the killing of the CEO.

It's going to get a lot worse, there WILL be more killings.