Former President Trump's would-be assassin Ryan Wesley Routh wrote a chilling letter admitting he failed in trying to take the life of the former president, and offering a reward for anyone who can finish the job...

The note was addressed to the "World" and reads:

"This was an assassination attempt on Donald Trump but I failed you. I tried my best and gave it all the gumption I could muster. It is up to you now to finish the job; and I will offer $150,000 to whomever can complete the job," according to court papers.

Routh dropped off a box at a person's home that included the letter, the court documents state.