 And across the state, the Davidson County Criminal Court clerk mistakenly let a man out of jail who later killed his ex-girlfriend. WSMV's reporting the 23-year-old Bryson Rivers crossed into Mississippi after his release in June and murdered 22-year-old Lauren Johanson. The clerk's office signed off on a document which let Rivers leave jail without him having an ankle monitor. Rivers was put in jail in December after the two got into an argument while on a Nashville trip. He was charged with kidnapping at that time.