Oscar-nominated actor Johnny Depp is not suitable for the role James Bulger in "Black Mass," also known as "Whitey," according to Eric Schneider, the real-life Winter Hill Gang leader's former henchman.

"I do not think that he is the best choice to play Whitey Bulger," Schneider told National Enquirer.

Bulger participated in 11 murders in the 1970s and 1980s is currently serving two consecutive life sentences. For his former henchman, there is no one "who can actually portray him the way he really was."

In his memoir, Schneider explained how the Winter Hill Gang murdered their victims.

"I once made the mistake of asking Whitey after dismembering a body why they had to stab him in the torso. He looked at me like I was an idiot and said, 'You gotta puncture the lungs or they'll turn into balloons and the body will come up,'" Schneider recalled.

"He's got that 'Pirates of the Caribbean' stigma. I don't think that Johnny Depp is the best," Schneider also said.

Meanwhile, British businessman Russell Edwards, who claimed to have solved the Jack the Ripper mystery, said he was inspired by the 2001 film "From Hell," in which Depp played a clairvoyant police inspector.

In his book "Naming Jack the Ripper," Edwards claimed Jack the Ripper is a Polish immigrant and barber named Aaron Kosminski, whom he told the Daily Mail  "was not a member of the Royal Family, or an eminent surgeon or politician" since "serial killers rarely are."

Edwards described Kosminski as "a pathetic creature, a lunatic who achieved sexual satisfaction from slashing women to death in the most brutal manner" and "died in Leavesden Asylum from gangrene at the age of 53, weighing just 7st."

In the early 1880s, Kosminski lived with his family near the murder scenes women in the London's East End, according to Agence France Presse.

"No doubt a slew of books and films will now emerge to speculate on his personality and motivation. I have no wish to do so. I wanted to provide real answers using scientific evidence, and I'm overwhelmed that 126 years on, I have solved the mystery," Edwards concluded.