Long Island music teacher planned sister-in-law’s murder for years — and even practiced deadly chokehold: prosecutors

A sick Long Island music teacher plotted for nearly a decade to kill and rape his college coed sister-in-law – and even practiced the chokehold he would use, prosecutors said Wednesday.

Joseph Horner, 27, repeatedly broke into the downstairs apartment of 25-year-old Victoria Castle to check out “explicit photos” of his wife’s sister before carrying...