Will Co. Sheriff's Department
Drew Peterson is being held in the Will County Adult Detention Facility in Joliet.
Convicted wife killer Drew Peterson briefly walked out of the Will County Jail on Thursday to attend his mother's wake.
No other family members were present during the private, 15 minute visitation at the Modell Funeral Home in Darien.
Peterson's 84-year-old mother, Betty Morphey, reportedly suffered from severe dementia.
"These things happen for any other inmate," a county spokesman told NBC Chicago, but added it's not something they publicize.