If there's one thing I've learned from travelling the world: There are contract killers and they can be had for very little money. Where I currently live you could get away with murder for 1 to 10k - depending on who you know.

The US are no exception.

If there's one thing I've learned through many years of human contact: if you need a thing done, you methodically plan it out, do it by yourself, and don't tell anyone.

I think what OP means is that it's very hard to find contract killers online, as most of them are police officers.