Chris Bartkowicz, the Highlands Ranch medical-marijuana grower facing federal drug charges for his basement operation, said Thursday that he was panicked and scared when agents confronted him outside his house. In the first time he has publicly said more than a few words about his February arrest, Bartkowicz said he was reluctant to talk to the Drug Enforcement Administration agents who would eventually arrest him and hesitant about letting them search his house. But, he said, he ultimately thought he could address their concerns. "I believed that if I explained to them that I wasn't illegal, that I was compliant...