(Hamilton)--The re-trial got underway Monday April 29th in the quadruple murder case of 41 year old Gurpreet Singh. The West Chester man is charged with the April 2019 shooting deaths of his wife, her parents and aunt at an apartment on Wyndtree Drive. The first trial ended with a hung jury. The second trial is being heard by a three judge panel. Singh could get the death penalty if convicted. The killings happened five years ago Sunday.