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What Happened in Boston - In April 2013, Boston area residents were amid terror after bombs went off at the Boston Marathon. Nearly two years later, Dzhokhar Tsarnaev was found guilty of 30 counts against him for the horrific incident after the jury deliberated for about 11 hours. On May 15, 2015, the jury sentenced Tsarnaev to death by lethal injection. In this timeline, we remember what happened in Beantown.   — Britt Middleton (Photo: AP Photo/Jane Flavell Collins)

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The Bombings - On April 15, 2013, at about 3 p.m. EDT, an explosive device goes off near the finish line of the Boston Marathon. A second blast follows about 12 seconds later. (Photo: AP Photo/WBZTV)

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The Aftermath - The twin blasts blanketed Boston's Copley Square with smoke. Three people are killed and more than 200 are injured. Doctors reported victims suffering from injuries sustained by nails, ball bearings and small, metal pallets, later confirmed to have been inside the explosives. (Photo: David L. Ryan/The Boston Globe via Getty Images)

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Pandemonium - Following the blasts, witnesses described the horrific scene as one of pandemonium. Others recall the gruesome scene of blood in the streets and bodies on the ground. (Photo: Alex Trautwig/Getty Images)

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In Mourning - Eight-year-old Martin Richard, pictured above, Lu Lingzi, 23, and Krystle Campbell, 29, were identified as the three individuals killed in Monday's attack. (Photo: AP Photo/Bill Richard)

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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)

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An Act of Terror - On April 16, 2013, President Obama said the FBI would be investigating the bombing as "an act of terror" and vowed to bring the perpetrators to justice. He and First Lady Michelle Obama attended an interfaith prayer service for the victims two days later. (Photo: REUTERS/Kevin Lamarque)

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FBI Releases Images of Suspects - On April 18, 2013, the FBI releases surveillance video and images of the alleged suspects wanted in connection with the bombings. One of the alleged suspects is seen carrying a black backpack believed to be used to conceal one of the bombs. (Photo: FBI)

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A Night on the Run - On the night of April 18, 2013, authorities respond to a robbery at a Cambridge convenience store. At about 10:30 p.m, a Massachusetts Institute of Technology police officer was found shot dead in his car. Police believe the two alleged bombing suspects are involved. (Photo: AP Photo/Matt Rourke)

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Firefight Ensues - Two armed men then reportedly hijacked an SUV, throwing explosives at police and inciting a firefight throughout Watertown. Authorities said they recovered "a significant amount" of homemade explosives from various scenes following the overnight shootout with police, CNN reported. (Photo: AP Photo/Matt Rourke)

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On Lockdown - Around 6 a.m. on April 19, 2013, Boston-area residents were told to stay indoors and not open the door for anyone but authorities. All mass transit has been shut down. (Photo: AP Photo/Matt Rourke)

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Suspects Identified - Later that morning, the two suspects are identified as brotherswho are from a Russian region near Chechnya and who had lived in the United States for several years. The first suspect, identified by police as Tamerlan Tsarnaev, 26, born in Russia, was killed with a bomb strapped to his chest in a shootout with police in the early hours of April 19. (AP Photo/FBI)

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Still on the Run - The second suspect, 19-year-old Dzhokhar Tsarnaev, pictured above, was born in Kyrgyzstan and was still at large for most of Friday. (Photo: AP Photo/Federal Bureau of Investigation)

Photo By Federal Bureau of Investigation/AP Photo

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Suspect's Uncle: "Turn Yourself In" - Ruslan Tsarni, who identified himself as the uncle of the two suspects, condemned their actions in an press conference outside his Maryland home on April 19. "If you are alive, turn yourself in. And ask for forgiveness from the victims, from the injured...ask forgiveness from these people," he said. (Photo: AP Photo/Jose Luis Magana)

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Lockdown Lifted - After a day's worth of a search for Dzhokhar Tsarnaev, Boston Police Commissioner Edward Davis speaks during a media briefing, where Gov. Deval Patrick lifted the lockdown order of the Boston area.  (Photo: Jared Wickerham/Getty Images)

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Dzhokhar Found - Shortly after, gunshots were heard in Watertown, Massachusettts, and Dzhokhar Tsarnaev, 19, was found in a boat outside of a home in the neighborhood. He was searched by law enforcement officers and immediately taken into custody and to the hospital for his injuries. (Photo: REUTERS/Massachusetts State Police/Handou)

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Federal Charges Come Down - On April 22, federal prosecutors charged Dzhokhar Tsarnaev with using a weapon of mass destruction to kill — a crime that carries a possible death sentence. (Photo: Win McNamee/Getty Images)

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Tsarnaev Moved to Federal Medical Detention Center - After several days in the hospital, Dzhokhar Tsarnaev was transferred to the Federal Medical Center Devens, located about 40 miles west of Boston. The 19-year-old is recovering from a gunshot wound to the throat and other injuries sustained as he tried to escape police. (Photo: AP Photo/The Lowell Sun & Robin Young, File)

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Female DNA Found on Bomb Component - The FBI found female DNA on at least one of the two explosives used to carry out the deadly bombings, but it could have come from a woman who was in the room where the bombs were made or from a cashier at a store where some of the components were purchased, an official told the Los Angeles Times. (Photo: AP Photo/Elise Amendola)

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Three More Detained in Connection to Bombing Plot - Azamat Tazhayakov and Dias Kadyrbayev, who were the classmates of bombing suspect Dzhokhar Tsarnaev, were charged on May 1 with conspiring to obstruct justice and waived bail. A third individual, Robel Phillipos, was charged with making false statements to investigators. All three men are accused of removing a backpack of emptied fireworks and a laptop from Tsarnaev's dorm room after the bombings, CNN reported. (Photo: CNN)

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A Possible Motive - As he hid inside a boat in the Watertown neighborhood, Tsarnaev allegedly scrawled the words "F*** America" and "Praise Allah," and other Anti-American statements on the side panels before his capture, according to an ABC News report on May 16. He previously told authorities the attacks were motivated by U.S. involvement in the Muslim nations of Afghanistan and Iraq, CNN reported. (Photo: Darren McCollester/Getty Images)

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Tamerlan Is Buried - Tamerlan Tsarnaev is secretly buried in Virginia on May 9, 2013, after a weeklong search for a cemetery willing to take the body, according to AP. (Photos from left: Orange County Sheriff's Office via Getty Images, AP Photo/The Lowell Sun & Robin Young, File)