DETROIT -

Detroit police say two teenagers have been arrested in the beating of a suburban man who was attacked while trying to help a boy struck by his pickup truck.

As the family of 54-year-old Steve Utash wait at his bedside, Detroit police continue their work to find every single person involved in the brutal beating Wednesday afternoon on the city's east side.

Sgt. Mike Woody said the 17-year-old and the 16-year-old boys arrested had a direct role in the severe beating of Utash. He remains in critical condition.

Woody says the arrests were made Saturday, although no charges will be filed immediately while investigators continue their work.

Utash's brother-in-law, Max Mohr, is hoping more arrests will follow.

"Happy, glad but now since the two dominos are going to fall, they're going to find out," said Mohr. "We want them all."

Investigators said the teens were two of about 10 people who threw punches and kicks at the Macomb County father and grandfather, as a crowd of 20 or so watched on.

It all began after a 10-year-old boy stepped in the path of Utash's pickup truck. The boy suffered minor injuries.

Utash remains in the hospital fighting to live. His condition hasn't changed over the last few days.

"The same. There's no difference. They're not telling us no more," said Mohr. "They're still bleeding on the brain."

Meanwhile, Utash's family said more than $70,000 has been raised online for his medical bills. He's a 54-year-old tree trimmer from Clinton Township who has no medical insurance.

Utash's three adult children are thankful for the donations and prayers that they've received from around the world.

"They didn't think it was going to get this big, but they're so appreciative that they don't really know how to take what the world is saying about this and their dad being the way he is," said Mohr.