A key witness in the murder trial of former Dallas police officer Amber Guyger was shot and killed Friday evening at an apartment complex in the city, according to local media reports. 

Joshua Brown, a neighbor of Guyger and Botham Jean, the man she was convicted of killing late last year at the South Side Flats apartment complex, was gunned down around 10:30 p.m, the Dallas Morning News reports. Police confirmed that a fatal shooting took place around that time in the same location described by the Morning News but stopped short of identifying the victim as Brown.