A man who drowned Thursday night in Lake Lanier has been identified as a Lawrenceville police officer. Cannon Trent Callender, 32, of Lawrenceville was swimming near Little Ridge Park off of Lanier Beach South Road in Forsyth County when he went under and never resurfaced. Divers with the Forsyth County Fire Department recovered his body from the lake after searching for about an hour near the park.