CEDAR HILL –– Throughout his five terms as the city's mayor, Rob Franke has been open about his stepson's battle with addiction. On Tuesday he spoke openly about his stepson's death. Joshua Slaven, 31, was fatally shot by a homeowner as he broke into a residence located on Stoney Creek Drive around midnight Christmas Eve. Franke says his stepson of more than 25 years has battled addiction since he was a teenager. Throughout his life, Slaven checked into numerous rehab facilities to treat his heroin addiction. (snip) "We saw that Josh was on something, and something different," said Franke. "He...