What? Is that equivalent?

Swatting involves sending anxious humans with military grade weapons to an innocent person's house. Those anxious humans are trained to kill. If you Swat someone, and that person ends up dead, you're the reason they died -- and I fully agree it should be treated as a homicide, manslaughter at a minimum.

In your scenario, you are a hostage taker. You've taken both me and the other person hostage with the threat of murder...

American policemen lack moral fibre. They are too anxious to be entrusted their duties

Anxiety likely has more to do with how dangerous their job is than their moral fiber.

Fair enough, but I read the previous post as saying that simply knowing that your action could lead to someone else committing a crime made you guilty.

The institutions of the state act a lot more like a machine, because the people in it are punished if they don't follow orders. While "just following orders" has been established in the past as no excuse, I think we've also shown through Stanford and Milgram experiments that human psychology does act that way. Thus, I don't think it's trivial to convert it into a moral agent problem. It's more of a systemic issue.

Ensuring there are consequences for people who act immorally may help address the systemic issues, of course.