A teenager about to graduate from high school shot dead his grandparents, mother and two friends, then wounded his younger sister before committing suicide.

AN 18-year-old who was about to graduate from high school is believed to have fatally shot his grandparents, mother and two family friends before killing himself, Ohio authorities said yesterday.

An 18-year-old who was about to graduate from high school is believed to have fatally shot his grandparents, mother and two family friends before killing himself, Ohio authorities said today.

Six people were found shot dead and a seventh was in a critical condition following a multiple murder-suicide in two neighbouring farmhouses near the west-central Ohio town of Bellefontaine, authorities said.