More information has been released about the two bomb suspects. The pair is believed to be brothers from Chechnya, according to AP. They have been in the states for a year.
In breaking news, one brother has been shot and killed by police.
Meanwhile, a police officer has been shot at the MIT campus Thursday night by one of the bombers. while in the line of duty.
The shooting reportedly took place at 10:48 PM Thursday night. Shots were reportedly fired near Building 32 on the campus of the Massachusetts Institute of Technology in Cambridge, Massachusetts.
The campus had alerted the campus community with the following message late Thursday night:
At 10:48 PM today gunshots were reported near Building 32 (Stata) which is currently surrounded by responding agencies. The area is cordoned off. Please stay clear of area until further notice. Unknown if injuries have occurred.. Although the situation is considered active and extremely dangerous, an investigation is underway. Updates will be provided at this site when more information becomes available.
The FBI released two pictures of the two suspects in the Boston Marathon Bombing and a surveillance video on Thursday.
A memorial service for victims of the bombing was held this morning at the Cathedral of the Holy Cross in Boston. The interfaith memorial started at 11a.m. ET and President Obama along with his wife Michelle were in attendance.
President Obama addressed the nation in a press conference immediately after the attacks, saying: "We will find out who did this; we'll find out why they did this," said the president from the White House. "Any responsible individuals, any responsible groups will feel the full weight of justice."
Innocent victims 8-year-old Martin Richards, 29-year-old Krystle M. Campbell, and Boston University grad student Lu Lingzi lost their lives in the horrific bombings. 17 of those injured remain in critical condition.
Two bombs went off almost simultaneously 4 hours and 10 minutes into the race. The aftermath of the bomb was the scene of warfare, as blood and limbs were scattered everywhere.