A 7-year-old boy saved his baby sister from their burning Tennessee home, climbing through a window from the outside into her bedroom and pulling her to safety. Chris and Nicole Davidson, both former firefighters, couldn't get to the bedroom where their 22-month-0ld daughter was because of flames in the living room, Nicole told WVLT-TV. They were able to grab their sons from their rooms before exiting the burning home. Once they realized they couldn't get into their daughter's room, that's when Eli — with a boost from dad —