(Ramsey, Co., MN) — Charges are now being filed in the murder investigation connected to the raid that killed Amir Locke. Ramsey County prosecutors are filing second-degree murder charges against 17-year-old Mekhi [[ meh-KY ]] Speed. Speed was arrested Monday in Winona. He was wanted in connection to the murder of Otis Elder in St. Paul in January. Minneapolis police served a search warrant last week for three apartments in Bolero Flats, one belonging to Speed and another where Amir Locke was found asleep.