Reports are emerging that Boston bomber Dzhokhar Tsarnaev had tried to kill himself moments before he was captured alive Friday evening by FBI in Watertown, Mass. 

19-year-old Dzhokhar reportedly put a gun in his mouth and pulled a trigger as police closed in on him, resulting in a serious throat injury that is preventing the bomber from talking. 

Investigators want to ask a million questions regarding the bombing, but Dzhokhar is unable to talk due to the bullet wound that went straight to the neck. 

Although he remains ventilated and sedated, he is not in critical condition. He is currently stable, but according to Boston Mayor Thomas Menino, the suspect may never be able to speak again. 

"We don't know if we'll ever be able to question the individual," Menino told ABC's "This Week" on Sunday. 

Dzhokhar's older brother Tamerlan died during a police confrontation Thursday night. Some reports say Dzhokhar ran over his older brother and that could be what killed him during the police shootout as he ran away. 

The two brothers are suspected of planting two simultaneous bombs close to the finish line at the Boston Marathon. The bomb blasts killed 3 innocent victims and injured 176 people, 17 of which were in critical condition. 

Many of the bomb's victims had their limbs blown off and hospitals reported that ball bearings were being taken out of the victims' bodies. 

Photos of the bombers were released Thursday by FBI. On the same evening, an MIT police officer was shot dead by the brothers who were on the campus. 

Within 24 hours of the release of the photos, the two brothers were identified, with one dying in a police shootout and another finally taken into police custody. 

One of the largest manhunts in American history came to a culmination Friday evening when Dzhokhar was captured on 76 Franklin St in Watertown, Mass. after hiding in a boat.