Question: What age was the American social entrepeneur who was one of eight who got killed in 2015 when an Amtrak train travelling from Washington, D.C. to New York City derailed?
Sentence (from "2015 Philadelphia train derailment"): On May 12, 2015, an Amtrak "Northeast Regional" train from Washington, D.C. bound for New York City derailed and wrecked on the Northeast Corridor in the Port Richmond neighborhood of Philadelphia, Pennsylvania.
Relevant evidence: Yes