WATCH: Dead at 13, her strangulation casts doubt on Texas’ antiquated inquest system

MARBLE FALLS, Texas (KXAN) -- Feeding into today’s Lake Marble Falls is another waterway – a smaller stream darkened by cedar elm and Chinkapin oak trees. Backbone Creek snakes its way through neighborhoods near the city’s downtown and onto its outskirts.

Just feet from the creekbank, along Avenue N, was a small, rubble sandstone house where 13-year-old Daynon Lewis lived -- and a shed out back, where she died.

Nearly 60 years later, the mystery of her strangulation now brings...