Student jumped to his death from window during threesome after stabbing friend in jealous rage.

A student stabbed his friend in a jealous rage during a drunken threesome before jumping to his death from a window, according to a newly-released police report.Yale University students Tyler Carlisle and Alexander Michaud were having sex with a female student when things took a dramatic and violent turn.
Carlisle, 21, became jealous that his pal was getting more attention and grabbed a knife from a nearby nightstand and plunged it into Michaud's neck, the Daily News reported.
After police were called, Carlisle threatened to jump from the ninth-floor window before plunging to his death, according to the New Haven police report obtained by Gawker. The report sheds new light on the horrific attack, which took place in an off-campus apartment on May 26 this year.

Michaud, now 22, was treated in hospital for a puncture wound to the throat.The female - who has not been named - was unhurt in the incident.Michaud, from Manchester, New Hampshire, told police he remebered finding himself sitting in the living room with the woman holding a white t-shirt to his wound.Carlisle, who had recently graduated after studying philosophy, is believed to have been pacing back and forth, apologising, before sitting on the window sill threatening to jump.Michaud said he didn't see the recent graduate jump. His body was later recovered six stories below, on a third-floor terrace. When police arrived they said they found the two surviving students naked in the apartment.The woman was described as "too distraught at the time of the incident to give a statement."