Boston Marathon bombing suspect Tamerlan Tsarnaev, 26, died early Friday after a gunfight with police. Investigators are looking into his past for clues about last week's terror attack. Here's a look at some key dates, compiled from CNN's reporting and other media reports.
October 21, 1986
Tamerlan Tsarnaev is born. His uncle, Ruslan Tsarni, says Tsarnaev was born into an ethnically Chechen family in Kyrgyzstan.
The Tsarnaev family moves from Tokmok, Kyrgyzstan, to Dagestan, according to the state committee for national security of the Kyrgyzstan government.
"They lived here for a year, not the whole year. They arrived at the school in 2001 and departed in March 2002," a spokesman at a school the children attended in Makhachkala, Dagestan, told Russia Today, a Russian state-funded television network.
Parents Anzor Tsarnaev and Zubeidat Tsarnaeva immigrate to the United States with their son, Dzhokhar. Their three other children -- Tamerlan Tsarnaev and two sisters -- stay behind in Kazakhstan with an uncle, his aunt told reporters in Canada this week.
Tsarnaev, then 16, is in Turkey in July 2003 for 10 days on a Kyrgyz passport, a senior Turkish official says.
He comes to the United States that month, along with his two sisters, his aunt, Maret Tsarnaeva, told the Toronto Sun.
July 19, 2003
Tamerlan Tsarnaev first enters the United States through New York's JFK International Airport, a federal official says.
Tsarnaev is registered to fight with USA Boxing, the organization that oversees amateur boxing in the United States, a spokeswoman says. Tsarnaev delivered pizza and held other jobs while boxing, his aunt said.
In an interview with the Lowell Sun newspaper in Massachusetts, after winning a fight in a local boxing tournament, Tsarnaev says he grew up in Grozny, Chechnya, and moved with his family to the United States in 2003 in hopes of starting a new life. "I like the USA ... America has a lot of jobs. That's something Russia doesn't have. You have a chance to make money here if you are willing to work," he said at the time, according to the Sun. He also told the newspaper that he studied music at a school in Russia and played the piano and violin.
Fall 2006, spring 2007, fall 2008
Tsarnaev attends Bunker Hill Community College as a part-time student, a school spokeswoman says.
Tsarnaev "got involved in religion," according to his mother. "Started following his own religion, never told me he could be on (the) side of jihad," Zubeidat Tsarnaeva told Russia Today.
Tsarnaev is photographed training at Wai Kru Mixed Martial Arts in Boston for a university magazine story. The caption of one photo in a gallery describes Tsarnaev as a native of Chechnya and says he has been in the United States for five years. A quote attributed to Tsarnaev says, "I don't have one American friend. I don't understand them."
That same year, Tsarni says, he had a falling out with Tamerlan. "I got into really a state of shock from changes I heard, I wouldn't say I saw, I heard from Tamerlan," he told CNN. He recalled a 2009 phone conversation in which in response to some life advice he had given, Tsarnaev called him an "infidel." The young man also told his uncle he was not concerned about work or studies because God had a plan for him. According to his uncle, Tamerlan Tsarnaev's radicalization started in not in Chechnya, but in Cambridge, Massachusetts, at a local mosque.
May 4, 2009