Vandalized: The site where Jackass star Ryan Dunn was killed in a car accident last week was sprayed with graffiti over night
It is unknown who was responsible for the vandalism however police were aware of the situation.
Ryan, 34, who has starred in all five of the Jackass films as well as the MTV television series, was killed in the early hours of June 20 when his his sports car flew off the road around 2.30am while he was driving to his home following a night out in a bar with friends.
Police said they found the burning wreckage of his 2007 Porsche 911 GT3, which was capable of reaching 190mph, in the woods off the road fully engulfed in flames.
His body was so badly burnt that he had to be identified by his tattoos, NBC Philadelphia reported.
Dunn was the registered owner of the $100,00 vehicle and was driving at the time, according to police.
Ryan's passenger and friend, 30-year-old Zachary Hartwell, was also killed instantly.
Hateful slur: The words 'Ritch Pr*ck' were written in black spray paint on the guard rail
A shrine: Fans had left flowers and messages of condolence next to the side of the road
Ryan Dunn's Jackass co-star Bam Margera broke down into floods of tears as he visited the spot where his best friend lost his life in a horror 130mph car smash.
An inconsolable Bam spoke to a local news station and was so distraught he could barely put his loss into words.
'It was the worst phone call I ever got in my life waking up to that,' the 31-year-old wept.
Margera, who was in Arizona at the time of the crash, visited the crash scene in Philadelphia on Tuesday evening.
He was visibly overcome with emotion, rocking back and forth in agony at the guardrail that the car crashed through.
'I've never lost anybody that I cared about. It's my best friend,' he told local TV station WTXF, weeping.
'He was the happiest person ever, the smartest guy. He had so much talent, and he had so many things going for him. This is not right, not right.'
Margera stood at the guardrail that Dunn pierced with his Porsche Monday morning with such force that the car slammed through about 40 feet of trees before exploding into flames.
When asked how he'd get through this ordeal, Bam replied: 'I can't. I can't.'
Up in flames: Ryan Dunn's car was unrecognisable after turning into a fire ball on impact
Source: dailymail.co.uk