Full Coverage: Tulsa Sexual Assault Investigation
Chief of Police Chuck Jordan wanted people to know that there is no doubt Campbell is the man who attacked the victim who helped police with a composite picture.
DNA evidence linked Campbell to her home, Jordan said.
Campbell's death does not mean the community should let down its guard as other possible dangers still exist, DA Harris stressed.
"People have to be aware. We know this probably won't be the last sexual assault in Tulsa County."
7/7/2014 Related Story: Court Documents Detail Tulsa Police Case Against Serial Rape Suspect
Harris said we should not live our lives in fear, "but in complete observation of what could happen."
Documents released Monday show strong evidence against Campbell. Search warrants describe the long and violent attacks police said seven Tulsa women endured at the hands of Campbell. They said he terrorized them, assaulted them and then stole from them in an apparent attempt to protect himself from prosecution.
At Tuesday's news conference, Harris said ethics prevent police and prosecutors from discussing forensic evidence gathered against Campbell. He said now that Campbell is dead that restriction no longer applies. Harris released copies of the probable cause affidavit to the media at the end of the news conference.
Police say Campbell forced the women to wash after the attacks and took one woman's nightgown and bedding. Still, that didn't erase all the DNA evidence at the victims' homes, police say.
The search warrants also say police found dark clothing, hoodies, gloves and knives in Campbell's apartment. Evidence from the victims' homes was also found in Campbell's car, police say.
Watch the news conference by clicking on the videos above, or if you are on our mobile site or app, go to the Videos category.