IN FEDERAL COURT IN DENVER MONDAY AN 18 YEAR OLD CASTLE ROCK MAN PLED NOT GUILTY TO CHARGES OF ATTEMPTING TO JOIN A FOREIGN TERRORIST ORGANIZATION. DAVIN MEYER WAS ARRESTED JUST BEFORE BOARDING A PLANE TO TURKEY WITH PLANS TO JOIN A TERRORIST GROUP. COURT DOCUMENTS SAY MEYER AT SOME POINT BEGAN COMMUNICATING OVER THE INTERNET WITH PEOPLE HE THOUGHT WERE LINKED TO A TERROR ORGANIZATION. THEY WERE IN FACT UNDERCOVER OFFICERS. HIS MOM HAD FIRST CONTACTED AUTHORITIES A YEAR EARLIER, WORRIED ABOUT HER SON AND HIS RADICAL BELIEFS.