Dzhokhar Tsarnaev

We know who killed three people and maimed 260 more five years ago at the Boston Marathon. But whoever built the bombs that ripped apart so many lives is still out there.

"You can sit at home and play 'Call of Duty' or you can come [to Syria] and respond to the real call of duty…."

The film is set for release nationwide in January.

Stephen Silva was convicted of giving a firearm to Boston Marathon bomber Dzhokhar Tsarnaev.

Tsarnaev's legal team said the convicted bomber doesn't deserve the death sentence.

Dzhokhar Tsarnaev was sentenced to death by a federal jury in May.

Other infamous convicts, including the "Shoe Bomber," also are housed at the Colorado prison.

The move was expected from his legal team following his conviction and sentencing earlier this year.

Azamat Tazhayakov was sentenced in June to three and a half years in prison for his role in hiding evidence.

Two dozen victims and survivors addressed Dzhokhar Tsarnaev earlier on Wednesday.

Khairullozhon Matanov was sentenced for obstructing the Boston Marathon bombing investigation.

The fate of Dzhokhar Tsarnaev, the Boston Marathon bomber, is raising questions similar to those about McVeigh. On June 19, 1997, "Newsweek" published an article examining McVeigh's trial.

Like many states, the feds are having trouble getting the killer drugs.

The jury deliberated for almost 15 hours; defense lawyers were expected to quickly appeal the death sentence.

Assistant U.S. Attorney said the ethnic Chechen had turned against his adopted country.

Here's what we know about the Boston Marathon bomber from the two phases of his trial.

Boston Marathon bomber Dzhokhar Tsarnaev told a Roman Catholic nun and prominent death-penalty opponent that "no one deserves to suffer" as the victims of the deadly 2013 attacks had.

Dzhokhar Tsarnaev apologized after he raised his middle finger to a cell surveillance camera following his arrest in 2013, a witness said.

The defense narrative goes like this: Dzhokhar wanted to live; Tamerlan, was determined to become a martyr.

Katherine's mother, Judith Russell, testified that she didn't want her daughter to be with Tamerlan Tsarnaev.

Once a heavy drinker, a Boston Bomber transformed into someone obsessed with Islam.

The defense argued Dzhokhar Tsarnaev fell under the sway of his older brother.

Boston Bomber Dzhokhar Tsarnaev is being tried at the courthouse.

"The image is extremely powerful, and the jury won't be able to put it aside."

Dzhokhar Tsarnaev was found guilty on April 8 of killing three people and injuring 264.

The debate over the death penalty has become even more contentious as of late.

"The Thread" documentary asks how old and new media, Redditors and citizen journalists shaped the coverage of the bombings.

Over 260 people were injured and 3 killed in the 2013 bombing.

A new book examines what shaped the men who launched the Boston Marathon attack.

Matanov will be sentenced on June 18.