Pete Davidson’s sister Casey shared a heartbreaking tribute to their dad, Scott, who died in the September 11 terrorist attacks in New York.

Casey, 24, marked the attack – which saw four planes flown into the Twin Towers of the World Trade Center, the Pentagon and Pennsylvania on September 11, 2001 killing 2,997 people – by sharing a series of photos of her dad, who was a firefighter.

Alongside a black-and-white snap of their dad, who was 33 when he died while attending the World Trade Center, in his uniform and other pictures of his children with him, including one of former Saturday Night Live star Pete draped in his dad’s firefighter jacket, she wrote: ‘This year more then ever I wish you could be here. We miss you, we celebrate you and we remember you every day. Proud to be your caseygirl. (sic)’

Casey was just three and her older brother seven when their father – who was part of Ladder Company 118 in Brooklyn Heights – died, and Pete previously revealed the profound trauma his dad’s death had on him.

The 28-year-old comedian once explained when he was ‘in fourth or fifth grade’ he didn’t think he could go on with life.

The stand-up – who suffers from borderline personality disorder – turned to comedy after his dad was killed, and now has his dad’s firefighter badge number, 8418, tattooed on his left arm.

Pete said in a previous interview with Variety: ‘If my dad didn’t die, I wouldn’t be a comic. I’d be a construction worker in Staten Island or a basketball couch. I learned what death was. That’s something you’re really not supposed to learn about until high school, when one of your friends falls asleep in the garage, or whatever.

‘To learn how anything can just be taken away from you early gave me this sense of ‘F**k it. Whatever, dude.’ I’m able to do stand-up and f**k around because hopefully the worst thing that has ever happened to me happened.’

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The 9/11 attacks still remain one of the most shocking events in living memory, and in terms of the death toll it is the most lethal foreign attack on America since the bombing of Pearl Harbor in 1941 during World War II.

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