Los Angeles police found Monday six bodies of a family, victims of an apparent murder-suicide, at a home in San Fernando Valley's Porter Ranch district.

Three letters police found at the family's two-story house in the 20600 block of Como Lane indicate that the gunman was 45-year-old financial advisor Karthik Rajaram. He cited financial problems as the reason for killing his family and himself.

All victims were shot in the head, with some sustaining multiple gunshots. The body of Indra Ramasesham, the 69-year-old mother-in-law, was found in a room on the first floor. The body of Rajaram's wife, Subasri, 39 and son Krishna, 19, were found in separate upstair bedrooms. Ganesha, 12, a 7-year-old son and the killer, gripping a gun, were all found dead in another upstair room.

Neighbors alerted police when the wife failed to pick them up to go to work. Police believe the killing happened on Saturday.