A 17-year old Athens County man will spend the next 28 years to life behind bars after being found guilty of murder.

Athens County Prosecutor Dave Warren says a jury found Mahad Osman guilty on all charges Wednesday.

Osman was being tried on two counts of aggravated robbery and one count of murder with a gun specification in connection with the death of Donnie Putnam in a New Marshfield home in February.

Osman was tried as an adult.

He's the second of four suspects to go to trial for the incident.

In June, Phillip Boler was found guilty on those same charges and sentenced to 28 years to life in prison.