BEXLEY, Ohio (AP) _ A husband and wife were found dead in their swimming pool Wednesday in what police believe was a murder-suicide. A note found inside the house asked relatives to take care of the couple's five children, a detective said.

The children, ages 3 to 10, were in the family's house in this Columbus suburb.

Detective Bob Cull said investigators suspect that Billy Matthews, 42, hit Kelly Matthews, 41, in the head, held her under water and then drowned himself.

He said the preliminary conclusions are based on the note and on a mark that was on the side of Kelly Matthews' head. Autopsies will be performed.

Billy Matthews had called his wife's parents early Wednesday to ask that they come stay with the children while he took her to the hospital, Cull said. He told them she was vomiting.

When the in-laws arrived, they found the note in the middle of the living room floor.

``It said something about take care of the kids because things just didn't work out,'' Cull said. He said the couple were not having marital problems.