Advocates and officials were back rallying outside of City Hall after another death in city jails.

“Anybody charged with any crime here in the city is being subjected to a potential death sentence,” said Queens Councilmember Tiffany Caban, whose district includes Rikers Island.

Michael Nieves died Tuesday in city custody. He was 40 years old.

Nieves was being held in a housing unit for detainees who have chronic mental illness. According to the Manhattan district attorney’s office he had been twice found unfit to stand trial.

Last week, he slit his throat with a razor in his cell and sources say was profusely bleeding onto the floor. Two correction officers and a captain have been suspended in connection to the case.

Sources say none of them rendered first aid to Nieves after calling for emergency medical assistance. It took about 10 minutes for that assistance to arrive, a source told NY1.

The death, the 13th this year of someone in custody or recently released from custody, has reignited a debate over whether the federal government should take over Rikers Island.

“It is wrong. It is dead wrong,” said Brooklyn Councilmember Lincoln Restler outside of City Hall on Thursday. “It is murderous to be sending people to that hell hole.”

“This needs to be the final incident,” added Brooklyn Councilmember Sandy Nurse. “This needs to be the signal that the federal government needs to take over Rikers.”

The Department of Correction is supposed to be in the process of implementing an action plan aimed at turning the troubled jail complex around.

Simultaneously, this week the mayor raised the question of whether the city would need additional facilities or the state’s help to hold its growing jail population once it’s required to close Rikers Island in five years.

The population currently exceeds the capacity in the new borough-based jails.

“We have to look at everything from state facilities,” the mayor said on Monday. “We have to see if we can get help from the governor.”

On Thursday, we asked the governor what the state would do.

“We offered space at the time, one year ago. I said I will take different populations,” she said at an unrelated event in Queens. “We offered to move women. We moved some women. We moved some members of the transgender community, some wanted to come back. We’ve been hands on in terms of saying ‘if you need our help, we’re there.’ Those conversations are always welcome.”