The mother of a Mankato teen charged in the fatal shooting of 17-year-old Tyson Goodsell is now facing felony charges of her own. Fifty-three-year-old Christa Wolner has been charged in Nicollet County with four felonies, including aiding an offender by obstructing a murder investigation and helping her son avoid arrest. Prosecutors allege Wolner picked up her son, Ryan, after the May 23 shooting, helped search for discarded cell phones, allowed him to communicate with co-defendants using her phone, and helped move evidence while he was in jail. Investigators also say she deleted surveillance video from her business and refused to provide the passcode to her cellphone during the investigation. Ryan Wolner remains jailed on nine felony counts, including aiding and abetting second-degree murder, in the death of Tyson Goodsell. Christa Wolner was being held in the Nicollet County Jail but was released on bail late on Monday evening. Court proceedings are pending.