In the latest attack, police say Hopkins pulled a knife on a 19-year-old woman who was walking home after getting off a CTA bus. He allegedly forced her into an alley where he sexually assaulted her.
Investigators also believe Hopkins is the man seen on surveillance video from a Hyde Park apartment building. In the attack on October 8, police say the suspect followed the victim into the lobby of the building and then forced her through a back door where he attacked her.
The building's security guard had mistakenly thought the suspect knew the victim when they walked in.
Hopkins is due in court for a bond hearing Thursday.