Germaine Walker, 21, of the 1300-block of North Hudson, is accused of grabbing the woman in the 300-block of West Menomonee around 7:30 a.m. Sunday. He is charged with one count of aggravated use of a deadly weapon and one count of unlawful restraint after he allegedly grabbed the jogger and dragged her into an alley.
Police say she screamed as the attacker repeatedly told her to keep quiet or he would kill her.
The victim said she felt a knife in the attacker's hand and in attempt to fight him off, she suffered lacerations and injuries, police said.
When two other joggers passed by, the suspect ran away on foot, police said, but officers patrolling the area were able to catch him minutes later in the courtyard of an apartment building.