Atatiana Jefferson's father, Marquis Jefferson, suffered a heart attack and died Saturday night at a Dallas hospital.
Marquis Jefferson's daughter, Atatiana Jefferson, was killed last month after police went to her home for a welfare check. She was playing video games with her 8-year-old nephew when she heard officer Aaron Dean outside and went to a window to investigate. Dean shot her through the window. Police say he did not identify himself as a police officer. Dean was charged with murder after resigning from the force.
After his daughter's death, Marquis Jefferson sought a temporary restraining order to gain control over the funeral arrangements from his daughter's aunt. A deal was eventually reached and the funeral was rescheduled.