As the police search for the remaining suspect in the Boston marathon bombing, a pro-Russian leader in Chechnya said that the United States was at fault for its own terrorist attack, as they gave the brothers Tamerlan Tsarnaev and Dzhokhar Tsarnaev a violent upbringing.

"The root of evil should be looked for in the United States," Ramzan Kadyrov said in comments posted online after the police shot dead Tamerlan Tsarnaev and hunted for his brother Dzhokhar, his suspected accomplice.

The Russian-installed leader of Chechnya criticized U.S. police on Friday for killing an ethnic Chechen suspected of carrying out the Boston Marathon bombing and blamed the violence on his upbringing in the United States.

"They (the brothers) grew up and studied in the United States and their attitudes and beliefs were formed there," Kadyrov said. "Any attempt to make a connection between Chechnya and the Tsarnaevs is in vain."

Kadyrov, a tough pro-Kremlin leader whose security services have been accused of human rights abuses such as kidnappings and torture, questioned why the U.S. police had not been able to arrest Tamerlan Tsarnaev.

"Apparently the special services needed a result by whatever means to appease society," he said.

(Reuters)