UPDATE | Ex-Marine wanted in 6 Pa. killings is found dead

PENNSBURG, Pa. (AP) — An Iraq War veteran suspected of killing his ex-wife and five of her relatives was found dead in the woods near his suburban Philadelphia home today after a day-and-a-half manhunt that closed schools and left people on edge.

Montgomery County District Attorney Risa Vetri Ferman said on her official Facebook page that police found Bradley William Stone's body. The cause of death was not disclosed.

Stone, a 35-year-old former Marine sergeant locked in a custody dispute so bitter that his ex-wife feared for her life, went on a 90-minute shooting rampage before daybreak Monday at three homes a few miles apart, authorities said.

The killings set off the second major manhunt to transfix Pennsylvania in the past few months. Eric Frein spent 48 days at large in the Poconos after the September ambush slaying of a state trooper.

As the manhunt dragged on — with SWAT teams making their way through neighborhoods and the Philadelphia police sending in a heat-sensing helicopter — at least five schools within a few miles of Stone's Pennsburg home closed, and others were locked down. Veterans' hospitals and other places tightened security.