It's impossible for people in the US to understand how cheap life is in the Philippines. Anyone can be killed for a few hundred dollars and often for a lot less. Every politician there is corrupt and I find this guys story credible. I don't find Duterte's claim that the the Davao Death Squads are just legend credible.
Assassination of your political, business or personal enemies is the way of life there. I'm also sure that most would be lived to see another day if they had the money to pay their killers...