There were 4 on board the chopper, 3 died.
The (Spanish) person at the controls did have a pilot’s license, did have a part owership stake of a chopper biz, but was mainly a real-estate investor:
http://www.latimes.com/socal/daily-pilot/news/tn-dpt-me-copter-crash-20180201-story.html
I was thinking it had been a 100% pro pilot, in which case it’d be complex to have a hit carried out this way.
But this way...?
Still a long shot, but not impossible.
The crash scene photos show that the pilot had popped the skid floats, which might mean he might have been aiming for a water crash-landing when their flight went south.
That would mean it’d be dubious the pilot was suicidal or had killing on his mind —that he wanted to live and that the flight had encountered a mechanical problem.