Cali was widely viewed as the leader of the notorious Gambino crime family.
He left his fingerprints on the license plate and maybe wore his heart on his sleeve.
Cali didn't think Comello was worthy of associating with a woman in his family, the sources added.
Comello, of Woods of Arden in Staten Island, is accused of pumping ten bullets into Cali Wednesday night, after allegedly smashing into Cali's Cadillac SUV with a blue pickup truck and exchanging tense words with the alleged godfather outside Cali's stately Todt Hill home.
The last Mafia boss to be rubbed out in New York City was Gambino don "Big Paul" Castellano, who was assassinated while getting out of a black limousine outside a high-end Manhattan steakhouse in 1985.
Cali, 53, was a high-ranking member of the Gambino organized crime family and was believed to be the acting boss, a law enforcement source confirmed.
Surveillance video of the killing showed a man, allegedly Comello, crash his auto into Cali's parked SUV, drawing Cali outside in what might have been a ploy to lure him out of the house, Shea said. When Cali tried to hide behind his vehicle, Comello allegedly ran him over. He was reportedly picked up at a New Jersey home by U.S. Marshals. Shea said Cali was shot 10 times.
"The investigation is still very, very young", the official said.
Police apprehended Anthony Comello in New Jersey on Saturday and expect to charge him with murdering Cali, the New York Police Department's Chief of Detectives Dermot Shea told a news conference.
The strapping, 6 feet 3 inches, green-eyed Comello was working odd jobs and was considered something of an oddball, according to sources. He is listed as single and a high school graduate. After Gotti went to prison, Cali eventually took over the organization.
The suspect's fingerprint reportedly was lifted from Cali's auto. I can't wait to see ALL the apologies to my Uncle and his Grandchildren! He had ALL screws lost!