Accused Boston Marathon bomber Dzhokhar Tsarnaev made his first public appearance today at a federal courthouse in Boston.
Tsarnaev appeared before a judge Wednesday morning for arraignment on 30 counts, charging him with using weapons of mass destruction and killing four people.
The 19-year-old pled not guilty to all the charges.
Three people were killed and more than 250 people were injured in the April 15th attacks. Many of the survivors and relatives of the victims were present inside the courtroom for the arraignment.
“I want to know what happened that day,” Liz Norden told NBC News. Her sons, J.P. and Paul, each lost a leg in the explosions near the finish line of the iconic race.
Tsarnaev was allegedly working together with his older brother, Tamerlan Tsarnaev, who was killed in a gunfight with police after a chase through Boston and the shooting death of police officer Sean Collier.
According to news reports, the younger Tsarnaev’s lawyers will argue that he was under the “mesmerizing influence” of his older brother.
However, prosecutors say that Dzhokhar wrote about his motives on the side of the boat where he was found, severely injured.
The messages included: “The U.S. Government is killing our innocent civilians,” “I can’t stand to see such evil go unpunished,” and “We Muslims are one body, you hurt one you hurt us all.”
Tsarnaev faces the death penalty if convicted.