Manslaughter Charges in Philadelphia Duck Boat Accident On July 7, 2010 the captain of a tourist duck boat carrying 37 passengers in the Delaware River off Philadelphia shut off his engine to investigate whether the engine was on fire. The tug M/V Caribbean Sea was towing the 250-foot barge The Resource nearby. U.S. Attorney's Office

Manslaughter Charges in Philadelphia Duck Boat Accident According to federal prosecutors, the pilot of the tug, Matthew Devlin, was distracted by cellphone messages and laptop use, and did not see that the barge was about to strike the duck boat. U.S. Attorney's Office

Manslaughter Charges in Philadelphia Duck Boat Accident The barge collided with the duck boat. Two Hungarian tourists, Szabolcs Prem, 20, and Dora Schwendtner, 16, were killed. The duck boat sank to the bottom of the Delaware River. U.S. Attorney's Office

Manslaughter Charges in Philadelphia Duck Boat Accident Three dozen passengers were pulled from the Delaware alive. Most had jumped from the duck boat before the collision. Eleven were injured. U.S. Attorney's Office

Manslaughter Charges in Philadelphia Duck Boat Accident In a photo taken just before the accident, according to federal prosecutors, the upper wheelhouse is seen empty. Prosecutors say pilot Matthew Devlin should have been in the upper wheelhouse, where he would have had better visibility. U.S. Attorney's Office

Manslaughter Charges in Philadelphia Duck Boat Accident Some of the duck boat's passengers were able to grab life jackets before the collision. ABC News