Question: The "Deepwater Horizon" oil spill for which Peter V. Neffenger was the Deputy Nation Incident Commander, killed how many people in total?
Sentence (from "Deepwater Horizon oil spill"): The "Deepwater Horizon" oil spill (also referred to as the BP oil spill, the BP oil disaster, the Gulf of Mexico oil spill, and the Macondo blowout) began on April 20, 2010, in the Gulf of Mexico on the BP-operated Macondo Prospect.
Relevant evidence: No