Sylvester Stallone’s Nephew Blames Actor For ‘Depressed’ Son’s Death: ‘You Couldn’t Return a Phone Call, Which Is All He Wanted… His Father’ (EXCLUSIVE)

The nephew of Sylvester Stallone has lashed out at the Hollywood star in the wake of his son Sage’s mysterious death, suggesting the actor had iced the 36-year-old filmmaker out of his life in the days before his death.

In a series of vitriolic messages posted on Facebook last Friday, obtained by Celebuzz but since removed, Edd Filiti, 18, claimed the Rocky star had failed to return his eldest son Sage’s call to wish his father happy birthday on July 6.

“What did he do wrong, say happy birthday,” Filiti, Sage’s cousin and the son of Stallone’s half-sister Toni Ann, wrote on the social networking site.

“Neither you [Stallone’s wife Jennifer Flavin] or he could return a phone call, which is all he wanted, his father. I know you don’t care what happened, but you’ll care when your (sic) squirming under the burning magnifying glass of public opinion.”

Filiti said: “You people make me f*ckin sick.”

Filiti did not return a request for comment.

As Celebuzz reported, Sage was “depressed” before his death because he was estranged from the Oscar-nominated actor, according to a family insider who spoke on the condition of anonymity.

“Sage was not allowed in his father’s home and he admitted to other family members of his devastation that he’d seemingly been cut out of his father’s life,” a family friend revealed.

“Sage idolized his father but they had become estranged in recent time. It crushed him.”

In his Facebook rant, Filiti was particularly critical of Stallone’s wife Jennifer, 43, who married the actor in 1997.

“Jennifer, I’m glad your stepmother workload has lessened, one less member of the family to keep away, one less distraction,” he said.

“Jennifer Flavin, you won. Your tore this family apart and got your trophy, Congrats! Like you told my family, ‘I’m Sly’s family now, he doesn’t need you anymore.’ Lets see how much he needs you after this.”

In another post, Filiti wrote:

No more pain but the pain he leaves his mother with, one of the kindest souls I’ve ever known, who would do anything for anyone, lets see how you brush this off, treat family like this, not one call to me or my mother either, “an angel by her beside” but your son? They’re going to paint you and your wife black and red, your image will disappear and everyone will see whats (sic) inside. Hold on, there’s a big f*cking storm coming. This is beyond disgusting. Good luck, what a f*cking family!

Stallone released a statement on Monday morning, begging for privacy.

“When a parent loses a child there is no greater pain. Therefore I am imploring people to respect my talented son’s memory and feel compassion for his loving mother Sasha [Czack],” he told TMZ.

“This agonizing loss will be felt for the rest of our lives. Sage was our first child and the center of our universe and I am humbly begging for all to have my son’s memory in full left in peace.”

An autopsy was carried out on Sunday, but toxicology results will take about 10 weeks, officials said.

Some prescription pill bottles were taken from his apartment, but authorities have said little about the cause of the death. There was no sign of foul play or trauma, or a suicide note, said Ed Winter of the coroner’s office.

Sage appeared in the 1990 film Rocky V as Rocky Balboa Jr, the son of his father’s title character. The pair also appeared together in the 1996 movie Daylight.