Woman found dead in water tank suffered heart attack

Lake County officials say an elderly woman found dead in a Lake Villa-area water tank died from a heart attack.

The News Sun reported Tuesday that the Lake County coroner says Adeline Helwig suffered a heart attack, possibly while trying to climb out of the water tank. Coroner Thomas Rudd says Helwig had no injuries and there were no signs of foul play.

The Lake County sheriff's office says Helwig apparently climbed into her home's cistern pump house. Deputies called to the home on May 27 for a well-being check found her face down in about 4 feet of water.

A neighbor told police Helwig was last seen May 23.

The cistern provides well water for the unincorporated area.