January 26, 2012 11:04 pm Police Search for Suspect In Attempted Delco Home Invasion A Collingdale, Pa. man answered a knock at his door and was suddenly attacked by a man with a knife, according to police. Luckily, the man was prepared. US & World Videos 2:54 UPenn leaders reiterate to pro-Palestinian protesters that they need to disband 1:44 Pro-Palestinian protesters remain on UPenn's campus despite warnings to disband 1:30 Protests calling for ceasefire continue at Penn 6:33 Family affair: Former Eagle and new Eagle Jeremiah Trotter and Jeremiah Trotter Jr. speak out 0:20 Teen girl shot in Southwest Philly, suspect in custody