The victims were found stabbed to death June 23 in a mobile home on U.S. 1 in Amity, a town of 200 residents near the Canadian border.
Killed were 55-year-old Jeffrey Ryan, his 10-year-old son, Jesse, and 30-year-old neighbor Jason Dehahn. An affidavit filed Friday indicates Ormsby told police he thought Jeffrey Ryan was dealing drugs.