otherwise the medical examiner believes the cause of death is consistent can hyperthermia and suggest the manner of death is homicide. supporting a murder charge against the father, justin harris. victor blackwell reports tonight. reporter: early wednesday morning, exactly one week ago, justin ross harris was seen at this atlanta area chik-fil-a. the newly released arrest warrant after breakfast, harris was seen strapping his 22-month-old son cooper into his car sheet. drove less than a mile away to this home depot store support center where he works a a web designer. normally harris takes scooper to a day-care center on-site. but not on this day. instead, harris headed inside the office and let left his toddler in his rear facing car seat in the back in the blazing sun. harris returned to the suv at lunch time, opened the driver s side door and placed something inside. he then closed the door and walked off. the temperature outside hit 88 degrees that afternoon.