The man was wanted for killing Santo Williams on June 23 while he tried to break up a fight in the parking lot of Cartier Lounge on the city's east side.
The Detroit Police Department's 9th Precinct Cease Fire Unit arrested the man about 1 p.m. Friday without incident.
I''m so thankful in my heart that we finally got some closure," said Jacquatta Williams, Santos Williams' mother. "I feel OK today. I'm crying today, but I'm crying happy tears."
Charges are pending.
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