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Haunting photos show Long Island teen Emily Finn happily dancing at prom with her ex-boyfriend who allegedly killed her in a botched murder-suicide before Thanksgiving.
Austin Lynch, 17, who awaits arraignment Friday in Suffolk County court, can be seen posing with and hoisting Finn, 18, in social media pics from the dance – months before their fateful breakup and the senseless shooting.
Another photo of Lynch unearthed by The Post chillingly shows him pose with a gun.

Lynch allegedly gunned down Finn inside his Nesconset home Wednesday as she returned some of his belongings after their recent split, police have said.
He then shot himself in the face, but survived and likely will face a second-degree murder charge, cops said.
A family friend of Lynch said the teen was heartbroken about his “puppy love” romance with Finn coming to an end.
“People are in the comments like, ‘she must’ve done something to him,’ No, she didn’t,” the friend said.

