Harrowing surveillance video shows the moment a 10-year-old girl raced to save her toddler sister from drowning after getting stuck in an inflatable tube.
"It passed without me realizing it, as it usually does. It’s been almost exactly 4 years since we went to that doctor's appointment and saw nothing instead of something... The mistake I’ve made is in thinking that I’ve finished grieving, or that I will one day."
