Mental exam ordered for former Webb City principal in double murder case

A mental examination was ordered Friday for former Webb City High School Principal Mark Porter, who is charged with two counts of first degree murder in connection with the April 30 murders of Gary and Jan Tyrrell of Springfield.

Porter's attorney, Dee Wampler, Springfield, argued for bond for his client, with Judge Mark Powell taking the decision under advisement until Porter's preliminary hearing 10 a.m. October 22.

The probable cause affidavit can be found at this link.