Patrice Ellerbe, Staff WriterLast Modified: 12:49 p.m. DST, 17 April 2013

BOSTON, Massachusetts - The FBI has determined that two bombs made from pressure cookers with nails, ball bearings, metal, exploded near the finish line during the Boston Marathon on Monday, 15 April 2013. The explosion left three people dead, one of which included an 8-year-old boy, and over 140 people injured. Authorities do not know who is responsible for the blast at this time, however, speculations suggest terrorist are responsible.

The two blasts sent the city of Boston into chaos. A third explosion was reported at JFK Library, however, the incidents were not tied together. According to the Huffington Post, the explosion occurred in Copley Square just before 3:00 PM. Commissioner Ed Davis reported there have been no arrests made or person of interest at this time.

The Associated Press reported the bombs went off at two separate time, and only seconds apart.  The streets were blood stained and people were frantic.  Although speculations suggest a terrorist attack, President Obama was careful to refrain from using the actual word “terror” or “terrorist.” According to the AP, the Pakistani Taliban denied having any parts in the bombing. The FBI are attempting to obtain all spectators videos, photos, and any audio from the event.

Two additional bombs were found near the end of the course and were disarmed once located.

The 8-year-old boy killed in the blast was identified as Martin Richard, the Boston Globe reported. The boy was attending the race in support of his father. Richard’s mother and younger sister were also in attendance, and were injured by the blast. CNN reported Richard’s mother had emergency surgery due to brain injuries, and his 6-year-old sister lost a leg.

Supporters of the victims from the Newtown shooting which occurred in December 2012 were in attendance and all were counted as safe. Authorities asked for people in the city to remain indoors and out of the streets. There was no prior knowledge of the attack, according to police officials.

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• FBI releases images of Boston bomb (ktvb.com)
• Boston Marathon Bombings: Authorities Find Pressure Cooker Lid On Building Roof (boston.cbslocal.com)
• 'Pressure cooker' devices used in Boston Marathon bombing (capitolhillblue.com)
• Pressure-cooker bombs suspected in Boston blasts (thehindu.com)
• Twisted shards that caused carnage (smh.com.au)