REFORM, Ala.—Alabama authorities are investigating after former NFL player Glenn Foster Jr. died in custody following a high-speed chase that resulted in his arrest and then a fight involving officers in the county jail where he was being held. The 31-year-old former New Orleans Saints player died Monday at a medical facility in Northport, Alabama, Senior Alabama Trooper Reginal King told The Tuscaloosa News. While being handcuffed, Foster fought against a Pickens County deputy and a correctional officer, injuring the deputy’s nose and hand, according to court records obtained by The Associated Press. Foster had an initial court appearance before Pickens County District Judge Samuel Junkin, where he was “non-compliant and refused to respond to answer any questions” aside from demanding an attorney, the judge wrote. Based on police observations and how Foster behaved, the judge said Foster was “not mentally stable and a danger to himself and others” and …