Crews have found the body of a 25-year-old man who went missing in the Potomac River south of Great Falls earlier this week. He is the third person to die after swimming in that area of the river this summer. Montgomery County Fire and Rescue said its swift water rescue team found the man's body at 11:30 a.m. Thursday. The team used sonar and camera imagery to find his body in an area that wasn't far from where he was last seen. Teams from Fairfax, Loudoun and Montgomery counties rushed to the river Tuesday afternoon after someone reported the man disappeared in the water. Two men in their 20s went swimming. One made it back to shore; one did not. “It is very deceiving,” Montgomery County Fire & Rescue Service Assistant Chief Dan Ogren said. “If you look out there right now, it looks peaceful, it looks calm. It’s not. It’s very dangerous. There’s rapid currents in this river; there’s dangerous water. No one should be in the water swimming.” Officials said the area where he went mi...