Description:Chicago police have arrested a man suspected in a string of attempted sexual assaults and armed robberies in the Logan Square neighborhood, just days after releasing a composite sketch. 23-year-old Vidal Rainey of Cicero faces 14 felony charges. The first attack happened July 11th in the 1700 block of North Humboldt Boulevard, where a woman was robbed at knifepoint. The attacker then tried to sexually assault the woman, but he fled when she cried for help.(1:38)