A Roseburg man being taken taken into custody Tuesday resisted arrest and had to be forced to the ground before being detained, Roseburg police said. Cameron Edward Cahill, 23, had a warrant for his arrest and was contacted by police around 10:35 a.m in the 400 block of Hewitt Avenue. Cahill fought officers before being placed under arrest, police said. He is a registered sex offender and did not report his address as required, police said. Cahill was booked into the Douglas County Jail on suspicion of resisting arrest and violating parole. He was in custody today and not eligible …