Question: Louis Alexander Slotin, was a Canadian physicist and chemist who worked on the Manhattan Project, Slotin was the second person to die from a criticality accident, following the death of Harry Daghlian, who had been exposed to what?
Sentence (from "Louis Slotin"): Slotin was the second person to die from a criticality accident, following the death of Harry Daghlian, who had been exposed to radiation by the same core that killed Slotin.
Relevant evidence: Yes