Victim’s family scoffs as Gilgo killer suspect Rex Heuermann pleads not guilty to 7th murder charge after relative’s hair found on victim

Accused Gilgo Beach serial killer Rex Heuermann has been charged with a seventh murder — the November 2000 death of Valerie Mack, according to court documents.  “Your honor, I am not guilty of any of these charges,” Heuermann, 60, told the judge in Riverhead court Tuesday morning while shaking his head back and forth. One of Mack’s family...