How many suspects in the boston marathon bombing

He is hospitalized in serious condition. April 22, - Tsarnaev is charged with one count of using and conspiring to use a weapon of mass destruction resulting in death and one count of malicious destruction of property by means of an explosive device resulting in death.

May 1, - Three year-olds are arrested in connection with the bombings. The three men are accused of helping Dzhokhar Tsarnaev after the bombing. Federal prosecutors say Azamat Tazhayakov, Dias Kadyrbayev, and Robel Phillipos took items from Tsarnaev's dorm room after the bombing to throw investigators off their friend's trail. Tazhayakov and Kadyrbayev are foreign nationals charged with obstruction of justice. They are initially held on unrelated visa issues.

Phillipos, an American citizen, is charged with lying to federal agents. This is after cemeteries in Massachusetts and elsewhere refuse to allow his burial. May 22, - An FBI agent shoots and kills Ibragim Todashev in Orlando, Florida, while questioning him about his relationship with Tamerlan Tsarnaev after cell phone records connect the two.

Todashev tells the agent that Tsarnaev participated in a triple homicide that was drug-related. The confrontation between the FBI agent and Todashev turns violent after Todashev lunges at the agent with a weapon, according to a law enforcement source. July 10, - Dzhokhar Tsarnaev pleads not guilty to 30 federal charges.

August 13, - Dias Kadyrbayev and Azamat Tazhayakov plead not guilty to conspiracy to obstruct justice and obstructing justice with intent to impede authorities. August 19, - The testimony of the trauma surgeon who treated Dzhokhar Tsarnaev is unsealed, revealing the extent of his wounds, including multiple gun shot wounds that pierced the base of his skull, mouth and vertebrae.

Unsealed documents also reveal that Tsarnaev was not read his Miranda rights until three days after he was detained. September 13, - Phillipos pleads not guilty to making false statements to federal officials, and Kadyrbayev and Tazhayakov reenter their not guilty pleas.

Tamerlan Tsarnaev's in-laws appear before a federal grand jury in Boston. Details of the four-hour session are not immediately released. October 21, - In a court document, prosecutors confirm that Tamerlan Tsarnaev was accused of participating in a triple homicide outside Boston. January 30, - A notice is filed with a federal court after US Attorney General Eric Holder says that federal prosecutors will seek the death penalty against Dzhokhar Tsarnaev.

May 30, - Authorities arrest a friend of the Tsarnaev brothers, Khairullozhon Matanov and charge him with one count of destroying, altering, and falsifying records, documents and tangible objects in a federal investigation, specifically information on his computer. He is also charged with three counts of making materially false, fictitious and fraudulent statements in a federal terrorism investigation.

He later pleads guilty to misleading investigators. August 21, - Kadyrbayev pleads guilty to obstructing justice. As part of the plea agreement, a sentence of seven years will be recommended by the US attorney, and Kadyrbayev, a Kazakh national, has agreed to be deported after serving his sentence.

October 28, - Phillipos, a friend of Dzhokhar Tsarnaev, is convicted on two counts of lying to federal agents. January 5, - Tsarnaev's trial begins. March 3, - Jury selection is completed.

Tsarnaev, who is 28 now and was 19 at the time, and his older brother Tamerlan detonated two homemade pressure-cooker bombs at the marathon's finish line on April 15, After four days in hiding in the Boston area, the brothers tried to flee, killing Massachusetts Institute of Technology police officer Sean Collier. Tamerlan Tsarnaev died after a gunfight with police that ended when his younger brother ran him over with a stolen car.

Jurors in found Dzhokhar Tsarnaev guilty of all 30 counts he faced and later determined he deserved execution for a bomb he planted that killed Lu and Richard. The Boston-based 1st U. Circuit Court of Appeals last year ruled that the trial judge "fell short" in screening jurors for potential bias following pervasive news coverage of the bombing and ordered a new death-penalty phase trial. The 1st Circuit stressed that even if he is not executed Tsarnaev would remain in prison the rest of his life.

He is incarcerated at the "Supermax" federal prison in Florence, Colorado. The Justice Department launched its appeal during Republican former President Donald Trump's administration and continued it after Democrat Joe Biden took office even though Biden opposes the federal government's use of the death penalty. Opposition to the death penalty, as shown in opinion polls, has increased in the United States, while its use has declined. A three-judge panel of the 1st U.

Circuit Judge O. While all three judges agreed the death sentence should be overturned, U. Circuit Judge Juan Torruella said he believed Tsarnaev was also denied the right to a fair trial when the judge declined to let the case be tried outside of Boston.

Prosecutors could ask the full appeals court to reconsider the ruling or appeal to the U. Supreme Court.