Two explosions near finish line...
COPS: 2 dead, 23 injured...
'Somebody's leg flew by my head'...
'Like War Zone'...
AFTERMATH FOOTAGE...**WARNING: Graphic**
NY POST: Suspect apprehended...
Saudi national under guard at hospital...
CBSNEWS: SAUDI WAS ACTING SUSPICIOUS...
NBCNEWS: 'YOUNG PERSON HERE ON STUDENT VISA'...
Bombs were inside trash cans...
WBZ-TV LIVE...
WRKO-AM...
Official: Cellphone service was shut down..
FAA restricted airspace...
NYPD Deploys 1,000 Additional Officers To Guard Prominent Locations...
Secret Service Shuts Down Pennsylvania Avenue...
UK security review of London Marathon...
Sen. Feinstein: 'It could be foreign, it could be home grown'...
NYT: Possibly 5 Devices...
Families of Newtown were in grandstands during attack...