(St. John, WA) -- The man at the center of an AMBER Alert in Washington and Oregon is dead following a SWAT standoff at a home in eastern Washington state. Police say SWAT team members entered the home in St. John yesterday evening to find Justin Robertson dead from an apparent self-inflicted gunshot wound. Police issued an AMBER Alert yesterday morning after Robertson allegedly broke into the home of his estranged wife and stabbed her several times before abducting their five-year-old son. Negotiators were able to convince him to release his son before they entered. Robertson's estranged wife is expected to recover from her injuries.