Suspect of second Donald Trump assassination attempt wrote a note saying he intended to kill the former US president

The suspect in the second alleged assassination attempt of Donald Trump wrote a note revealing his intentions to kill the former President.

Ryan Wesley Routh, of Hawaii is accused of going to the Trump International Golf Course in Florida armed with a rifle with the intention of killing the former President.

The suspect of the alleged assassination attempt on Trump has been named as Ryan Wesley Routh (AFPTV/AFP via Getty Images)

Now, the US Justice Department has said that the 58-year-old left a note titled 'Dear World', which explained he intended to kill Trump.

It was penned months before Routh allegedly travelled to the golf course in Florida and dropped off at the home of an unnamed person, who got in touch with authorities after Routh's arrest.

The note allegedly also contained a list of locations where Trump was expected to be.

It was placed in a box, which remained unopened until after the alleged assassination attempt, along with ammunition, a metal pipe and other items.

According to prosecutors, Routh’s phone had alerted towers near Trump’s golf course in West Palm Beach, Florida, where the Republican had been playing at the time.

Trump was on the golf course when shots were fired in his vicinity (TIMOTHY A. CLARY/AFP via Getty Images)

A court filing stated that his phone had repeatedly pinged towers, which reveals where your cell phone is at any current time, from August 18 until September 15.

On Twitter in 2020, Routh expressed support for Democratic US presidential candidate Bernie Sanders and mocked President Joe Biden as 'sleepy Joe', according to Reuters.

Earlier this year, Routh tagged Biden in a post on Twitter: "@POTUS Your campaign should be called something like KADAF. Keep America democratic and free.

"Trumps should be MASA ...make Americans slaves again master. DEMOCRACY is on the ballot and we cannot lose."

It is believed to be the second assassination attempt on Trump's life in just three months.

Thomas Matthew Crooks was shot dead after he attempted to assassinate Donald Trump earlier this year (Bethel Park School District)

On July 13, Trump came within milliseconds of death after 20-year-old Thomas Matthew Crooks opened fire at him at a rally in Butler, Pennsylvania, from the slanted roof of a building just 150 meters to his right.

It resulted in the death of father-of-two volunteer fire chief Corey Comperatore, and critically injured two others.

The presidential candidate didn't get away unscathed though, as one of the multiple bullets fired struck him, grazing the top of his right ear.

Crooks, a kitchen worker, was armed with an AR-style rifle when he was shot dead by the Secret Service 26 seconds after he opened fire on the rally.