Timeline: The Boston Marathon Bombing Case

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  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Boston Marathon Bombings
  • Dzhokhar Tsarnaev
  • Female DNA Found on Bomb Component
  • Three More Detained in Connection to Bombing Plot
  • Dzhokhar Tsarnaev
  • Boston Marathon Bombings
  • The Bombings
  • Boston Marathon Bombings

The Making of the Bombs

Investigators conclude a kitchen pressure cooker was used to contain one of the bombs after the lid of a pressure cooker was found on a roof of a building near the scene. The bomb held in the pressure cooker was hidden in a backpack, the FBI said. The second bomb was reportedly held in a metal container. (Photo: AP Photo/FBI)