Potential suspect:
http://www.nypost.com/p/news/nationa...9uC2PDGIjYBalO

Authorities have confirmed to The Post that they have identified a suspect in the Boston Marathon bombing.
The suspect — a Saudi national who suffered shrapnel wounds in today's blast — is currently being guarded in a Boston hospital.
A law enforcement source confirmed to The Post that 12 people were killed and nearly 50 were injured in today's blast.