Witnesses told investigators the attackers knocked the man off his bike and began beating him. Police said he was hit in the head with a bottle and then kicked and punched as he lay in the street.
His stolen bike was found later. The man remained hospitalized Wednesday.
Hemingway said the unseasonably warm weather drew many people outdoors, and police had been dispersing large groups of young people in the city all afternoon.
"You just can't be everywhere at once," Hemingway said. "We had officers just a couple of blocks away when the attack happened."
Kalamazoo's high on Tuesday was 63 degrees, according to the National Weather Service. It's average high for the date is 35.
CLICK HERE to follow Action News on Twitter
CLICK HERE to get Action News on your website
CLICK HERE to find Action News on Facebook
