PALATKA, Fla. (Court TV) — The attorney representing a woman accused of killing her ex-boyfriend and burying him in a shallow grave tried to delay her trial on Thursday after his co-counsel abruptly stepped back from the case. Caylen Deller (Putnam County Sheriff’s Office) Caylen Deller, 32, has pleaded not guilty to charges of first-degree murder with a firearm, tampering with physical evidence and failure to report a death. Her attorney, Brian…