Murder of Victoria Morris and Crimes of Gregory Clepper

One of Chicago’s Southside Strangler’s Gregory Clepper went on a murder spree from 1991 - 1996, possibly amounting to 40 victims. 

Clepper lived in St. Paul for a time in the mid 1990’s; and had an obsession with sex workers in the area. One woman in particular was 1994 Wright County victim Victoria Morris. 

Was he actually responsible for all of the crimes he admitted to or was he lying so his victim list could be higher and gain more notoriety?