Bill Richard, the father of 8-year-old bombing victim Martin Richard, released this statement today:
"My dear son Martin has died from injuries sustained in the attack on Boston. My wife and daughter are both recovering from serious injuries. We thank our family and friends, those we know and those we have never met, for their thoughts and prayers. I ask that you continue to pray for my family as we remember Martin. We also ask for your patience and for privacy as we work to simultaneously grieve and recover. Thank you."

An undated school photo of 8-year-old Boston Marathon bombing victim Martin Richard.

The Richard family is pictured here in this photo from April 26, 2009. Clockwise from left is older son, Henry, mother Denise, father Bill, younger son, Martin, and daughter Jane. Denise and Jane were injured in one of the explosions at the 2013 Boston Marathon, Martin was killed.

Krystle Campbell, 29, of Medford, Mass. is the second person to be identified as a victim of Monday's bombing at the Boston Marathon.

Krystle Campbell, 29, of Medford, Mass. was killed in Monday's Boston Marathon bombing.

Krystle Campbell, 29, of Medford, Mass. was killed in Monday's Boston Marathon bombing.

Krystle Campbell, 29, of Medford, Mass. was killed in Monday's Boston Marathon bombing.

Krystle Campbell, 29, of Medford, Mass. was killed in Monday's Boston Marathon bombing.

Krystle Campbell, 29, of Medford, Mass. was killed in Monday's Boston Marathon bombing.

Lu Lingzi, a 23-year-old student from Shenyang, China, and a graduate student at Boston University, was identified as the third victim killed in the bombing attack at the Boston Marathon on April 15, 2013.

Lu Lingzi, a 23-year-old student from Shenyang, China, and a graduate student at Boston University, was identified as the third victim killed in the bombing attack at the Boston Marathon on April 15, 2013.

Lu Lingzi, a 23-year-old student from Shenyang, China, and a graduate student at Boston University, was identified as the third victim killed in the bombing attack at the Boston Marathon on April 15, 2013.

Lu Lingzi, a 23-year-old student from Shenyang, China, and a graduate student at Boston University, was identified as the third victim killed in the bombing attack at the Boston Marathon on April 15, 2013.

Lu Lingzi, a 23-year-old student from Shenyang, China, and a graduate student at Boston University, was identified as the third victim killed in the bombing attack at the Boston Marathon on April 15, 2013.

Lu Lingzi, a 23-year-old student from Shenyang, China, and a graduate student at Boston University, was identified as the third victim killed in the bombing attack at the Boston Marathon on April 15, 2013.

Lu Lingzi, a 23-year-old student from Shenyang, China, and a graduate student at Boston University, was identified as the third victim killed in the bombing attack at the Boston Marathon on April 15, 2013.

Lu Lingzi, a 23-year-old student from Shenyang, China, and a graduate student at Boston University, was identified as the third victim killed in the bombing attack at the Boston Marathon on April 15, 2013.

Lu Lingzi, a 23-year-old student from Shenyang, China, and a graduate student at Boston University, was identified as the third victim killed in the bombing attack at the Boston Marathon on April 15, 2013.

Lu Lingzi, a 23-year-old student from Shenyang, China, and a graduate student at Boston University, was identified as the third victim killed in the bombing attack at the Boston Marathon on April 15, 2013.

Firefighters salute as pallbearers carry the casket of Krystle Campbell, from St. Joseph Catholic Church in Medford, Mass., after a funeral service on April 22, 2013.

Mourners leave the funeral for Boston Marathon bomb victim Krystle Campbell, 29, at St. Joseph's Church in Medford, Mass., Monday, April 22, 2013.

A priest comforts family members of Boston Marathon bomb victim Krystle Campbell after her funeral at St. Joseph's Church in Medford, Mass. Monday, April 22, 2013. At right is her mother, Patty Campbell, and her brother, Billy.