PHILADELPHIA — After hours of sifting through the charred remains of an East Lansdowne, Pennsylvania, home on Thursday, investigators retrieved three sets of human remains and a rifle — the beginnings of their painstaking search for evidence as they worked to piece together what led a resident of the home to shoot two police officers before setting the house ablaze the day before. It was difficult, “gruesome” work, according to Delaware County District Attorney Jack Stollsteimer. And with frustration, he said that the full scope of what happened inside the ruined home on Wednesday afternoon ma…
