A Grand Jury indicted two college friends of suspected Boston bomber Dzhokhar Tsarnaev on federal obstruction of justice charges Thursday, according to The Boston Globe.

The alleged bomber in the Boston marathon, Dzhokhar Tsarnaev, entered a not guilty plea in court on Wednesday, according to The New York Times.

A friend of the suspected Boston bombings was shot and killed. The FBI shot and killed Ibragim Todashev Tuesday night, an Orlando man being questioned regarding the Boston marathon bombings and a friend of suspected terrorists Tamerlan and Dzhokhar Tsarnaev, ABC News reported.

Three suspects have been taken into custody in the connection to the Boston marathon bombings, city police said Wednesday. The police department made the announcement in a tweet Wednesday morning and said more details would follow. Police spokeswoman Cheryl Fiandaca confirmed the tweet but referred all other questions to the FBI. In a followup tweet, the police department emphasized that "there is no threat to public safety."