the last wounded has left the hospital headed for home. she thought she was going to die that terrible day. here's randy kay. >> reporter: it's almost time for erica brannock to leave the hospital. so she's getting one last pedicure from her nurses. above the bed, a dragon fly hangs. >> it had the saying on it it was a symbol of strength and courage and getting through hard times. so it's been my mascot. >> hard times is an understatement. on marathon day, her brother, sister, and brother-in-law had gone to see her mother run. they were standing near the finish line when the bomb went off. >> i fell backwards. i could hear people screaming and crying. >> erica was also screaming for help. the lower part of her left leg had been blown off. her right blown broken. >> this woman crawled over to me and grabbed my hand. she had heard me screaming for