The Fort Dodge man accused of fatally stabbing his sister and nephew in Ames last month will face a competency hearing. On Thursday, the court temporarily suspended proceedings for a competency evaluation for 22-year-old Davontrez R. McCuddin who according to the court “is suffering from a mental disorder” which would impact the trial. It was on March 13th that the Ames Police Department responded to a residence in the 3900 block of Tripp Street on reports of a stabbing. Upon their arrival, officer located 26-year-old Markasia McCuddin and 1-year-old Liam Sanders-McCuddin both suffering from multiple stab wounds. Both died at the scene. Witnesses reported to authorities in a criminal complaint seeing Davontrez McCuddin, the brother of Markasia and the uncle to Liam,…..