Roughly 200 people attended a private service last night in Cedar Rapids to pray for a police officer that remains in a coma. Family, friends and law officers from around the region attended the vigil in support of 30-year-old Tim Davis, who was assaulted while responding to a robbery on Sunday.

Davis suffered serious head injuries that required surgery. Cedar Rapids police spokesperson Cristy Hamblin describes the injuries as "life-threatening" and says Davis is in guarded condition. The Cedar Rapids Police Protective Association has established a fund at the Collins Credit Union where donors can help offset the Davis family’s expenses.

Three teenagers are facing charges in the case.