In August 2011, scientists publicly confirmed a skeleton exhumed from the old Pentridge Prison's mass graveyard was indeed Kelly's after comparing the DNA to that of Leigh Oliver. The DNA matching was based on mitochondrial DNA (HV1, HV2). This is indicative of Kelly's maternal line. The investigating forensic pathologist had indicated that no adequate quality somatic DNA was obtained that would enable a y-DNA profile to be determined. This may be attempted at a later date. A y-DNA profile would enable Kelly's paternal genetic genealogy to be determined with reference to the data already existing in the Kelly y-DNA study (see this page). The skeleton was missing most of its skull, the whereabouts of which are unknown.