Suspects walk free in Ellis County murder case
Kasey Roberts and Robbie Biggar
Credit: WFAA
Kasey Roberts, left, and Robbie Biggar were slain 16 years ago, but detectives are still seeking their killers.
Credit: WFAA
Kasey Roberts, left, and Robbie Biggar were slain 16 years ago, but detectives are still seeking their killers.
