A father shot dead his two young sons, his wife and her parents in a remote Russian village before handing neighbors US$6,000 (HK$46,800) for their burial and then killing himself.
The man killed his sons, aged four and nine, his wife, 38, and her elderly parents with a shotgun at Podsinee village in southern Siberia.
"Later he pushed US$5,000 and 40,000 rubles (HK$9,771) through the fence of the neighbors' house with a note asking that they all be buried," investigators said. "Then he went into a room and shot himself."
The tabloid website Lifenews, known for its contacts with law-enforcement authorities, said the slaughter was the result of a family dispute.
The husband used to live in Belarus with his wife and sons, but she returned to the Russian region of Siberia several years ago with her sons to be closer to her parents.
The dispute took place after Pyotr Ivanshin, 43, reappeared at the family home in Siberia and during a night-time argument seized the weapon and killed his family, the website said.
The local police investigative committee told the RIA Novosti news agency that the murdered wife had been seeking a divorce. A spokeswoman said: " She applied for divorce but the husband came back to Podsinee in August."