While out boating on the Potomac River in Washington D.C. actress Lynda Carter found a body floating in the water.

Carter, who is famous for her 1970’s TV role “Wonder Women,” told the Washington Post that after discovering the body she had to yell to nearby fishermen for help because she was alone and didn’t have her cell phone with her. She waited for help to arrive and directed them to the location of the body.

D.C. police have confirmed that the body of Helen Johnstone, 47, a Washington resident was found floating in the river on Wednesday. The death is being investigated and medical examiners will perform an autopsy to determine the cause of death.