Roger Zatkoff ran a successful business into his 70s.
He took vacations, sometimes traveling by himself to places like California and Florida, in his 80s.
The former Detroit Lions linebacker and member of the team’s 1957 championship team lived a normal enough life that he was sure he did not have chronic traumatic encephalopathy, the degenerative brain disease caused by repeated blows to the head that has impacted many football players from his era.