Given the question: What key details about john fetzer can be extracted from the following bio? Bio: john earl fetzer -lrb- march 25 , 1901 - february 20 , 1991 -rrb- was a radio and television executive who was best known as the owner of the detroit tigers from 1961 through the early 1980s .
The answer is:
- known for is owner of detroit tigers- death date is 20 february 1991- birth date is march 25 , 1901- name is john earl fetzer- birth place is decatur , indiana- occupation is radio and television executive