A Man Accused Of Killing His Ex-Wife’s Boyfriend In Fall Branch Earlier This Month Will Be Undergoing A Mental Competency Evaluation. James Allen Was In Washington County Tennessee General Sessions Court Yesterday For A Probable Cause Hearing. His Attorney Requested The Evaluation. Allen’s Charged With First Degree Murder In The Shooting Death Of Richard Carter. Investigators Allege He Shot Through The Front Door Of The Home, Striking Carter Several Times. Allen Remains Behind Bars And Will Be Back In Court At A Later Date.