The attorney for murder suspect Branden Riddle-Terrel was granted a continuance in court last week so that he can investigate the possibility of entering a dual plea based on insanity. Riddle-Terrel allegedly had been on a drug- and whiskey-fueled binge before he launched a savage attack on Ryan Roth, stabbing him at least 18 times at Roth’s Lake of the Pines home in February 2012. He has pleaded not guilty to one count of murder with a special allegation of use of a deadly weapon in Roth’s death, as well as one count of criminal threats against a female victim, …