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Friends and family of Krystle Campbell file into St. Joseph Church for her funeral in Medford, Massachusetts April 22, 2013. Krystle Campbell died in the two explosions that hit the Boston Marathon on April 15 killing at least three people and injuring more than 100 others. REUTERS/Brian Snyder ( USA-EXPLOSIONS/BOSTON )

Patty Campbell (front row C) walks out of the funeral Mass for her daughter Krystle Campbell, accompanied by her son Billy (front row 2nd R), at St. Joseph's Church in Medford, Massachusetts April 22, 2013. Krystle Campbell died in the two explosions that hit the Boston Marathon on April 15 killing at least three people and injuring more than 100 others. REUTERS/Brian Snyder ( USA-EXPLOSIONS/BOSTON )

Patty Cambell (3rd L), mother of Krystle Campbell, a victim of the Boston Marathon bombing, and brother Billy Campbell (2nd R) walk out of St. Joseph Catholic Church after the funeral service on April 22, 2013 in Medford, Massachusetts. A manhunt ended for Dzhokhar A. Tsarnaev, 19, a suspect in the Boston Marathon bombing after he was apprehended on a boat parked on a residential property in Watertown, Massachusetts. His brother Tamerlan Tsarnaev, 26, the other suspect, was shot and killed after a car chase and shootout with police. The bombing, on April 15 at the finish line of the marathon, killed three people and wounded at least 170. (Photo by Kevork Djansezian/Getty Images) ( 167194595 )

Patty Cambell (C) mother of Krystle Campbell, a victim of the Boston Marathon bombing, and brother Billy Campbell (2nd R) talk with Cardinal Sean O'Malley at St. Joseph Catholic Church after the funeral service on April 22, 2013 in Medford, Massachusetts. A manhunt ended for Dzhokhar A. Tsarnaev, 19, a suspect in the Boston Marathon bombing after he was apprehended on a boat parked on a residential property in Watertown, Massachusetts. His brother Tamerlan Tsarnaev, 26, the other suspect, was shot and killed after a car chase and shootout with police. The bombing, on April 15 at the finish line of the marathon, killed three people and wounded at least 170. (Photo by Kevork Djansezian/Getty Images) ( 167194593 )

Pallbearers carry the casket of Krystle Campbell, a victim of the Boston Marathon bombing, to St. Joseph Catholic Church for her funeral on April 22, 2013 in Medford, Massachusetts. A manhunt ended for Dzhokhar A. Tsarnaev, 19, a suspect in the Boston Marathon bombing after he was apprehended on a boat parked on a residential property in Watertown, Massachusetts. His brother Tamerlan Tsarnaev, 26, the other suspect, was shot and killed after a car chase and shootout with police. The bombing, on April 15 at the finish line of the marathon, killed three people and wounded at least 170. (Photo by Kevork Djansezian/Getty Images) ( 167190328 )

The funeral procession passes through town for 29-year-old Krystle Campbell, who was one of three people killed in the Boston Marathon bombings, on April 22, 2013 in Medford, Massachusetts. The 29-year-old restaurant manager, raised in Medford, Massachusetts, was killed in the blasts at the finish line of the Boston Marathon. Massachusetts Gov. Deval Patrick has asked residents to observe a moment of silence at the time of the first explosion at 2:50 p.m. this afternoon. (Photo by Mario Tama/Getty Images) ( 167194016 )

Police officers and others gather outside the funeral for 29-year-old Krystle Campbell, who was one of three people killed in the Boston Marathon bombings, on April 22, 2013 in Medford, Massachusetts. The 29-year-old restaurant manager was raised in Medford. Massachusetts Gov. Deval Patrick has asked residents to observe a moment of silence at the time of the first explosion at 2:50 p.m. this afternoon. (Photo by Mario Tama/Getty Images) ( 167198753 )

Mourners leave the funeral for Boston Marathon bomb victim Krystle Campbell, 29, at St. Joseph's Church in Medford, Mass., Monday, April 22, 2013. (AP Photo/Elise Amendola) ( APTOPIX Boston Marathon Victim Funeral )

Patty Cambell (C) mother of Krystle Campbell, a victim of the Boston Marathon bombing, arrives with family memebrs to St. Joseph Catholic Church for her funeral on April 22, 2013 in Medford, Massachusetts. A manhunt ended for Dzhokhar A. Tsarnaev, 19, a suspect in the Boston Marathon bombing after he was apprehended on a boat parked on a residential property in Watertown, Massachusetts. His brother Tamerlan Tsarnaev, 26, the other suspect, was shot and killed after a car chase and shootout with police. The bombing, on April 15 at the finish line of the marathon, killed three people and wounded at least 170. (Photo by Kevork Djansezian/Getty Images) ( 167190389 )

Mourners walk out of St. Joseph Catholic Church after the funeral service for Krystle Campbell, a victim of the Boston Marathon bombing, on April 22, 2013 in Medford, Massachusetts. A manhunt ended for Dzhokhar A. Tsarnaev, 19, a suspect in the Boston Marathon bombing after he was apprehended on a boat parked on a residential property in Watertown, Massachusetts. His brother Tamerlan Tsarnaev, 26, the other suspect, was shot and killed after a car chase and shootout with police. The bombing, on April 15 at the finish line of the marathon, killed three people and wounded at least 170. (Photo by Kevork Djansezian/Getty Images) ( 167194594 )

Jaime Caputo (C) holds an American flag outside the funeral for 29-year-old Krystle Campbell, who was one of three people killed in the Boston Marathon bombings, on April 22, 2013 in Medford, Massachusetts. The 29-year-old restaurant manager was raised in Medford. Massachusetts Gov. Deval Patrick has asked residents to observe a moment of silence at the time of the first explosion at 2:50 p.m. this afternoon. (Photo by Mario Tama/Getty Images) ( 167190895 )

Mourners hug as they leave the funeral for Boston Marathon bomb victim Krystle Campbell, 29, at St. Joseph's Church in Medford, Mass. Monday, April 22, 2013. Hundreds of family and friends packed the church in Medford, Mass., for Campbell's funeral, while dozens more waited outside after being turned away. (AP Photo/Elise Amendola) ( Boston Marathon Victim Funeral )

Shane Higgins holds an American flag outside the funeral for 29-year-old Krystle Campbell, who was one of three people killed in the Boston Marathon bombings, on April 22, 2013 in Medford, Massachusetts. The 29-year-old restaurant manager was raised in Medford. Massachusetts Gov. Deval Patrick has asked residents to observe a moment of silence at the time of the first explosion at 2:50 p.m. this afternoon. (Photo by Mario Tama/Getty Images) ( 167198422 )

Patty Campbell (2nd L), mother of Krystle Campbell, arrives at St. Joseph's Church with her son Billy (L) and an unidentified family member for the funeral of her daughter Krystle in Medford, Massachusetts April 22, 2013. Krystle Campbell died in the two explosions that hit the Boston Marathon on April 15 killing at least three people and injuring more than 100 others. REUTERS/Brian Snyder ( USA-EXPLOSIONS/BOSTON )

Mourners react as a hearse arrives at St. Joseph Catholic Church for the funeral of Krystle Campbell, a victim of the Boston Marathon bombing, on April 22, 2013 in Medford, Massachusetts. A manhunt ended for Dzhokhar A. Tsarnaev, 19, a suspect in the Boston Marathon bombing after he was apprehended on a boat parked on a residential property in Watertown, Massachusetts. His brother Tamerlan Tsarnaev, 26, the other suspect, was shot and killed after a car chase and shootout with police. The bombing, on April 15 at the finish line of the marathon, killed three people and wounded at least 170. (Photo by Kevork Djansezian/Getty Images) ( 167190390 )

Mourners watch as friends and family of Krystle Campbell arrive for her funeral at St. Joseph Church in Medford, Massachusetts April 22, 2013. Krystle Campbell died in the two explosions that hit the Boston Marathon on April 15 killing at least three people and injuring more than 100 others. REUTERS/Brian Snyder ( USA-EXPLOSIONS/BOSTON )

People wait on line to attend the funeral for 29-year-old Krystle Campbell who was one of three people killed in the Boston Marathon bombings on April 22, 2013 in Medford, Massachusetts. The 29-year-old restaurant manager was raised in Medford. Massachusetts Gov. Deval Patrick has asked residents to observe a moment of silence at the time of the first explosion at 2:50 p.m. this afternoon. (Photo by Mario Tama/Getty Images) ( 167198420 )

The funeral procession passes through town for 29-year-old Krystle Campbell, who was one of three people killed in the Boston Marathon bombings, on April 22, 2013 in Medford, Massachusetts. The 29-year-old restaurant manager, raised in Medford, Massachusetts, Massachusetts, was killed April 15, in the blasts at the finish line of the Boston Marathon. Massachusetts Gov. Deval Patrick has asked residents to observe a moment of silence at the time of the first explosion at 2:50 p.m. this afternoon. (Photo by Mario Tama/Getty Images) ( 167194127 )

The funeral procession passes a sign for 29-year-old Krystle Campbell, who was one of three people killed in the Boston Marathon bombings, who was one of three people killed in the Boston Marathon bombings, on April 22, 2013 in Medford, Massachusetts. The 29-year-old restaurant manager, raised in Medford, Massachusetts, Massachusetts, was killed April 15, in the blasts at the finish line of the Boston Marathon. Massachusetts Gov. Deval Patrick has asked residents to observe a moment of silence at the time of the first explosion at 2:50 p.m. this afternoon. (Photo by Mario Tama/Getty Images) ( 167194125 )