The grieving mother of a 2-year-old boy tossed to his death in the East River is suing the city and the NYPD for $60 million, accusing them of failing to try to save him when told he’d been taken by his dad.

Cierra Carroll, 17, claims in a new complaint that police misclassified her call when she reported little Montrell Williams missing in May — with someone even hanging up the phone after asking, “So what?”

“Montrell Williams should be here today if it wasn’t for the NYPD being neglectful in finding him,” family spokesman Rev. Kevin McCall said at a press conference outside the NYPD 40th Precinct stationhouse on Friday, according to the Daily News . 4

“No amount of money will bring him back,” McCall said. “However, the NYPD has to be held responsible.”

Carroll said she calle

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