Towanda, PA (WBNG Binghamton) John DeSisti's attorneys said in closing remarks Tuesday during their client's competency hearing they can no longer represent him because of his current state of health. DeSisti, 75, of Waverly is facing two counts of criminal homicide and back in Bradford County court for his second competency hearing. He's charged with shooting to death his cousin Carol Keefe and her husband, David. The two were found dead in 2006 in their home in Athens Township. A two-day competency wrapped up Tuesday, leaving Judge David Grine to decide if DeSisti is competent to stand trial. His defense attorneys said his dementia is worsening. The defense said in closing remarks they can no longer communicate with their client and he is incapable of getting proper legal representation. Expert witnesses for the defense testified the defendant only has between six and 12 months to live because dementia has caused so much damage to his brain. Dr. John O'Brien, a prosecution witness, said DeSisti's behavior while incarcerated is simply uncooperative. O'Brien said in testimony that he doesn't think there is any brain damage caused by Alzheimer's but says there has never been a complete clinical evaluation on DeSisti because of his resistance. DeSisti has been at Waymark State Correctional Facility since November 2012, where O'Brien said his records do not show his condition has gotten any worse. On Monday, witnesses for the defense said in court that DeSisti no longer understands the charges brought against him. They testified the defendant only has between six and 12 months to live because dementia has caused so much damage to his brain. If Judge Grine decides DeSisti is able to stand trial, the trial date has been scheduled for July, 8th.