This morning around 3:30a.m. Chandler officers were dispatched to assist Chandler Fire personnel with a death investigation at an apartment located at 375 N. Federal St. Upon arrival officers discovered 81 year-old Helen Smith deceased inside the residence with a stab wound. Officers learned Helen’s grandson, 30 year-old Brandon Smith, was responsible for her death. Not long after officers arrived on-scene, Brandon was located at a nearby location. Brandon was booked into the Maricopa County Jail on one count of 1st Degree Murder.