Chechnya President Ramzan Kadyrov says two people suspected of carrying out the Boston Marathon bombings lived and studied in the US and have no connection to Chechnya.“We do not know ... (the suspects). They did not live in Chechnya. They lived and studied in America. The people suspected of committing crimes in Boston have nothing to do with Chechnya,” said Kadyrov in a statement released on Friday. The statement added that the suspects were brought up in the US and “what happened in America is the fault of the American special services.” This comes after the US police identified the surviving bombing suspect-- Dzhokhar Tsarnaev -- as of Chechen origin. The other suspect, who was killed in a shootout with police, is said to be Dzhokhar’s brother. The 26-year-old man was identified as Tamerlan and died in a shootout in Watertown. The shootout took place when police were looking for the bombing suspects and the assailant who killed a police officer at the Massachusetts Institute of Technology (MIT). Local media reports said that Dzhokhar Tsarnaev lived in Cambridge, Massachusetts. According to the suspects' uncle, both men have lived in US for about a decade. The US city of Boston was locked down as a massive manhunt for Dzhokhar continued on Friday. Two bombings in Boston on Monday left three people dead and more than 170 injured. Police believe there is a link between the blasts at the Marathon and the shooting incident on the MIT campus. The United States has experienced several mass killings over the past six months including an incident on December 14, 2012, when a 20-year-old man, identified as Adam Lanza, killed twenty children and six adults before pointing the gun at himself at Sandy Hook Elementary School in Newtown, Connecticut.