Trust me, you're an amateur.
The Dubai government released this incredible surveillance footage of an 11 member hit team tracking a top Hamas official just before they whacked him in his hotel room. This all went down a few weeks ago. The hit team is likely Israeli, though the members of the team are made up of nationals from many different countries, including France, England and Ireland. They were completely professional and left absolutely no physical trace of their existence that could be used to track their identities. This surveillance footage, cobbled together from many different sources, is the only thing they left behind.
That and the big dead body of a longtime terrorist.
This ain't no movie, this is the real deal. Normally, I would feel a little bit of remorse for what is essentially a snuff film, but this guy they killed was a monster. Nobody, Israel or otherwise, puts this much time, effort and precision into killing somebody unless they've done some really awful shit.