MOSCOW, March 19 - RAPSI. Children's rights commissioner Pavel Astakhov insists that US authorities forward all documents related to the death of Maxim Kuzmin, a Russian boy adopted by a Texan family, the ombudsman's press service told RIA Novosti on Tuesday.

Ector County District Attorney Bobby Bland said on Monday that his office will not charge Alan and Laura Shatto in the January 21 death of Max Alan Shatto, who was born Maxim Kuzmin.

"The ombudsman, the Investigative Committee and the Foreign Ministry will insist that US authorities provide all the materials in the Maxim Kuzmin case," Astakhov's press service said.

Astakhov announced the death of Maxim Kuzmin on February 18. He tweeted that the child had been given powerful "psychotropic substances" and was badly beaten before he died in a hospital on January 21.

On March 1, Texas authorities announced that based on the autopsy results it could be concluded that Maxim's death was not criminal. The four doctors who reviewed the final autopsy results ruled the death accidental.

Initially the investigators did not rule out that Maxs adoptive parents could be charged with neglect.

The Shattos adopted Max and his biological half-brother, 2-year-old Kristopher aka Kirill, from the same orphanage in western Russia. Since Max's death, Kristopher has remained with his adoptive parents.