The accused killer of an FDNY paramedic callously smirked and winked at photographers in court Wednesday — as authorities revealed he admitted being blitzed on drugs when he ran down Yadira Arroyo with her own ambulance.

Jose Gonzalez — who faces life in prison without parole — also sparked outraged gasps and snorts of disbelief from Arroyo’s kin and 100-plus EMTs when he pleaded “not guilty” to first-degree murder.

According to court papers filed afterward, Gonzalez confessed to smoking “two blunts” laced with PCP and taking the anti-psychotic drug Seroquel before Arroyo’ s March 16 slaying in The Bronx.

Gonzalez, 25, also babbled nonsense after he was busted for allegedly running over and dragging the beloved mother of five to her death while trying to steal her ambulance, the papers said.

“I hopped on the ambulance to save the kids from the fire,” he rambled.

“I was riding on the back of the ambulance, it stopped, I got off, and got into the cab, I tried to speak to the passenger, she was yelling, I tried to drive away, the the police crashed into the ambulance.”

Gonzalez also bizarrely claimed he would leave in a Maserati when the cops were finished with him, and promised to give them each “a Maserati and a million dollars” because he thought they were “cool” and would help him get custody of his kids.

“I’m not a murderer,” he said. “I’m a nice guy.”

He also predicted: ​”​I’m going to get a lawsuit and I’m going to get a Bentley.”

Gonzalez, cuffed behind his back throughout the proceeding, mumbled something to the furious EMTs in the gallery, but none of them could make out what he said, union president Israel Miranda said afterward.

“He had a smirk on his face,” Mirada fumed.

“How can this man plead not guilty? The evidence speaks for itself.”

The president of another EMT union local, Vincent Variale, added: “Everyday he is in jail, New Yorkers are safer.”

Gonzalez lived in a homeless shelter down the block from Arroyos’s home, and outside the courthouse, an unidentified woman held a sign that said, ​”Jose​ ​​— Yari helped you and brought you to the hospital 3 times!! WHY DID YOU MURDER HER,”

The FDNY said it could neither confirm nor deny the claim.

Defense lawyer Alice Fontier told the judge that both she and Gonzalez had received death threats.