The vehicle was found in the lake on July 31 and Connie Crowell, 54, and her son, John Crowell, 22, were pronounced dead at the scene.
Connie and John, from Monroe, were in the car and seatbelted in when crews found them, according to police and they succumbed to drowning.
Police said a boater tried several times to rescue the mother and son, but Connie Crowell refused to acknowledge pr accept the boater's help.
Get Connecticut local news, weather forecasts and entertainment stories to your inbox. Sign up for NBC Connecticut newsletters.
The deaths have been rule a homicide/suicide.
Stories from LX News
LX, or Local X stands, for the exponential possibilities of storytelling in our communities.
