"This was not a random act", NYPD Chief of Detectives Dermot Shea said Saturday during a press conference announcing the arrest.
A man has been arrested in connection with the fatal shooting of a rumoured crime boss.
The suspect "is now being held in jail in New Jersey pending court appearances, where we anticipate we will have him returned to Staten Island to face murder charges for the death of Francesco Cali, which occurred on this past Wednesday evening", Shea said.
When he was apprehended, the suspect was in the vicinity of a blue pick-up truck, said police sources.
The purported head of the Gambino crime family, also known as "Franky Boy", was shot repeatedly outside his home in the NY borough of Staten Island late Wednesday.
Comello has residences in several places, including Staten Island, Shea said.
Shea said fingerprints were found on Cali's vehicle, which he said will be compared with Comello's at some point. Cali was taken to a hospital where he was pronounced dead.
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"While we believe we have the shooter in custody for this incident, the investigation is far ... from over", he said.
An official told NJ Advance Media that Comello has family in Brick, which is where authorities arrested him on Saturday.
Though Comello has no criminal history, Shea said that he "has crossed paths in some limited circumstances with the NYPD", in the past, mainly involving his driving record.
Police are looking into whether this was the work of an organized crime gang, or a faction inside the Gambino family, including John Gotti's brother, Gene, who was just released just months ago after serving 29 years for dealing heroin.
It is unclear what Comello was doing in Brick Township, although staffers at Ocean County Scanner News say he has family in the town.
Cali, a native of the Italian island Sicily, served in the organization's ruling panel for years before replacing Domenico Cefalu in 2015.