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 "Rachel Jacobs"): She was killed at age 39 in the 2015 Philadelphia train derailment while commuting between her home in New York and the Philadelphia offices of ApprenNet, the educational technology company she had recently joined as CEO.
Relevant evidence: Yes