Guede had already been granted permission to leave prison during the day to work at the center while he served his sentence for the 2007 murder of 21-year-old Kercher.
The case in the university city of Perugia gained international notoriety after Kercher’s American roommate, Amanda Knox, and Knox’s then-boyfriend were placed under suspicion. Both were initially convicted, but Italy’s highest court threw out the convictions in 2015 after a series of flip-flop decisions.
Guede was originally convicted in a fast-track trial procedure. He has denied killing Kercher.