articleThe Brief A 23-year-old Dallas man drowned Sunday night while attempting to swim across a section of Lake Lewisville. Emergency crews launched a search effort after witnesses saw him submerge, and firefighters recovered his body around 11 p.m. The Tarrant County Medical Examiner ruled the death an accidental drowning following an investigation by Texas Game Wardens. A 23-year-old Dallas man drowned Sunday evening after trying to swim across a section of Lake Lewisville, authorities said. Game wardens and local emergency personnel responded to the Lake Park boat ramp area to launch a search effort.