Manhattan

A teen was beaten and stabbed to death in a fight with party crashers following a bash in Washington Heights.

Adionis Santana, 16, was at a party on St. Nicholas Avenue and West 186th Street at about midnight on Saturday when several uninvited guests showed up.

Santana told the men they were not welcome, and a struggle broke out.

The crashers left, and Santana was attacked a short time later outside the building. He was stabbed in the chest and hit over the head with a baseball bat.

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A teen was shot dead in front of his female companion by suspected gang-bangers in Harlem.

The unidentified 18-year-old was walking along Lenox Avenue near West 136h Street at about 3 a.m. yesterday, when he was stopped by several men who asked if he was a member of a gang, sources said.

One of the men then pulled out a gun and shot him once in the chest before they all fled.

The victim’s name was withheld pending family notification. His companion was unhurt.

Bronx

A knife-wielding woman threatened to kill her father during an argument in Morrisania, cops said yesterday.

Jessica Medina, 21, flew into a rage Jan. 1 after her dad refused to give her cash in his home on Washington Avenue, law-enforcement sources said.

Then she allegedly broke the man’s cellphone and smashed his face with an ashtray.

“I’m going to kill you,” she allegedly snapped before lunging at her father with a kitchen knife as he fled.

The dad was treated for a fractured nose.

Medina was charged with assault, menacing, and criminal possession of a weapon.

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A Bronx man who allegedly killed his wife in their Longwood home has surrendered in Georgia.

Sidney Brown, 48, had been arguing with his wife, Tyesha Benson, 37, in their apartment on Bruckner Boulevard near Intervale Avenue at about 12:30 p.m. Dec. 29, when he allegedly struck her in the head. She died at the scene.

The next day, the medical examiner ruled the death a homicide and, when cops sought Brown for questioning, they found he had vanished.

He resurfaced on Saturday in Savannah, where he surrendered. He was charged with murder and weapons possession and is awaiting extradition.

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A crook apparently pulled the old “hand in the pocket, I’ve got a gun” trick during a robbery at a Dunkin’ Donuts in Belmont.

He walked into the shop on Southern Boulevard about 11:30 a.m. on New Year’s Day, held his right hand in his coat pocket, walked around the counter and ordered the clerk to “give me the money,” sources said.

The worker opened the register and the bandit swiped an undisclosed amount of cash.

The clerk said he never actually saw a weapon.

Brooklyn

A robber not only emptied the cash register but also the tip jar at a Subway sandwich shop in East New York.

The crook walked into the eatery on Van Siclen Avenue at about 2:30 p.m. on Jan. 1 and asked for a former employee, sources said.

When he was told that person was not there, he asked the 19-year-old female clerk if she was alone, the sources said.

She said “yes,” and he put his right hand in his pocket, claimed to have a gun and ordered her to empty the cash register.

The clerk handed over $155 and the crook took an undisclosed amount of cash from the tip jar before fleeing.

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There was no payoff for these hardworking thieves.

Two crooks were caught red-handed by cops as they tried to break into an ATM machine in Bensonhurst.

A witness called 911 after he spotted William Mahoney, 45, and Nicholas Giampacio allegedly using tools to pry open the ATM outside a grocery on West Sixth Street at about 3 a.m. Wednesday.

Cops arrived before the machine was compromised, and nabbed both men.

They were charged with attempted grand larceny and possession of burglars’ tools.