A man fatally shot two people and then turned the gun on himself at a cemetery in Ontario on Saturday, Jan. 2, police said.

All three of the deceased were family through marriage, but late Saturday investigators were still sorting out how they were related and trying to determine the motive, Ontario police Sgt. Jeff Higbee said.

Their names were not released. All three appeared to be in their 60s, police said.

UPDATE: Shooter, victims identified

The shooting was reported just after 3 p.m. at Bellevue Memorial Park at 1240 W. G St., Higbee said.

Three people – a man and two women – had gone to the cemetery to visit a family member’s grave, Higbee said.

The gunman was waiting in his own vehicle nearby. When the three people reached the grave, the gunman got out of his vehicle and approached them, Higbee said.

He quickly, with very few shots, killed the man and one of the women at close range. Just as quickly, he then shot himself, Higbee said.

The other woman, whom police described as elderly and using a walker, was uninjured.

Saturday’s shooting is the Inland area’s second murder-suicide in three days. Late on New Year’s Eve or early New Year’s Day, a woman and her ex-boyfriend were found dead in in Jurupa Valley in an apparent murder-suicide.

Contact the writer: psurowski@pe.com, 951-368-9648, follow him on Twitter at @PeterSurowski and like him on Facebook.