This bittersweet video shows a brave dad kissing his son for the final time - just 24 hours before he died while saving his fiance's daughter from drowning. Army veteran Brandyn Mitchell, 25, was dragged under the water after rescuing Keira, six, from treacherous currents as they swam in a lake. Just the day before his fiance Angelia Herrera - Keira's mum - had filmed him playing with and cuddling their son two-year-old son Bryson. She was unaware that the clip would become so poignant and she now watches it every night to remind herself what a great father Brandyn was.