| A Cirrus SR22 coming in to land at Frederick Municipal 
				Airport collided with a helicopter that was involved in a 
				training exercise, the Federal Aviation Administration said. 
				Frederick is about 50 miles (80 km) northwest of Washington.
 William Jenkins, 47, of Colorado, 29-year-old Christopher 
				Parsons and 35-year-old Breandan MacFawn -- both from Maryland 
				-- were killed in the helicopter, Maryland State Police said in 
				a statement. It was unclear who was the pilot, police said.
 
 Two people in the airplane -- 55-year-old pilot Scott Graeves 
				and his 75-year-old passenger Gilbert Porter -- were injured, 
				police said. Both were taken to a local hospital and were 
				discharged in the evening, police said.
 
 Rescue crews found the wreckage within a half-mile of the 
				airport, authorities said. State police said the plane was 
				suspended vertically in a small strip of trees with its 
				parachute deployed.
 
 The FAA and National Transportation Safety Board will 
				investigate the collision, the FAA said.
 
 (Reporting by Lacey Johnson and Brendan O'Brien in Milwaukee, 
				and Curtis Skinner in San Francisco; Editing by Louise Ireland)
 
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