The family of 76-year-old Homer Hallum is in mourning after the senior citizen was found frozen to death outside of his Detroit senior living complex, My Fox Detroit reports.“I have called his number just to see if he’s going to answer because I just don’t believe this is real,” Hallum’s heartbroken daughter, Therea Hallum told reporters. The senior was accidentally locked out of the Morton Manor Senior Living Complex on a dreadfully cold night when temperatures dropped as low as 3 degrees.“He literally was outside of his apartment and froze to death,” Hallum’s daughter continued before sharing that she spent time with him just before his death. “I took care of my dad on a regular basis and there was nothing wrong with him. I had just seen him less than 12 hours [before].”She received a call just after 7 the following morning informing her of the incident. Representatives from Morton told her that Hallum had somehow gotten out of one of the back doors and was not only locked outside of the apartment complex, but also locked inside of the gated parking lot.“He had no other choice in blistering cold weather,” said Hallum’s other daughter, Sheila Garrison. “All he could do was lay down and basically die.” “The guard that retrieved him from outside said that he was stiff as a board,” Garrison continued. “And that he was cold as ice, like heavy cold.”Hallum died on the way to the hospital and now his daughters are demanding answers.“Will this happen again? Has this happened before?” Garrison questioned. “Did they tell him when he leased the apartment that he couldn’t use that door?” “I’m just so hurt,” Theresa Hallum told reporters. “The pain will never go away. Anybody out there, check on your loved ones everyday. You don’t want to get the call I got.”Morton reps are refusing to comment on the incident.