Federal agents are searching for a friend of the surviving Boston Marathon bombing suspect.  

Heda Umarova visited her family's native Chechnya last year and never returned to her home in suburban Boston.  

The 23-year-old has reportedly posted jihadi-type photos on social media since then, leading counter-terrorism officials to believe that she may have been radicalized to commit violence in the name of Islam.  

Umarova reportedly stayed abroad in August to get married to a man she met during her trip.  

Dzhokhar Tsarnaev, who was close friends with Umarova's brothers, is accused of killing three and injuring hundreds during the bombing last April.