CNN's Pamela Brown reported from Cleveland, and CNN's Greg Botelho reported and wrote from Atlanta.

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CNN's Susan Candiotti, Deborah Feyerick, Carol Cratty, Jake Tapper, Brian Todd, Pamela Brown and Kathleen Johnston contributed to this report.

CNN: 3 more detained in Boston attack

CNN's Susan Candiotti, Deborah Feyerick, Gloria Borger, Carol Cratty, Jake Tapper, Brian Todd, Pamela Brown and Kathleen Johnston contributed to this report.

CNN: Bomb suspect's buddies covered for him, feds say

CNN's Pamela Brown, Kristen Kiraly and Greg Botelho contributed to this report.

CNN: DNA test shows captor fathered girl, Ohio AG's office says

CNN's Matt Smith, Tom Watkins, Susan Candiotti, Deborah Feyerick, Gloria Borger, Carol Cratty, Jake Tapper, Brian Todd, Pamela Brown and Kathleen Johnston contributed to this report.

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CNN's Tim Lister, Paul Cruickshank, Deborah Feyerick, Pamela Brown, Julian Cummings, Barbara Starr, Ann O'Neill, Melissa Gray, Susan Candiotti, Tom Watkins, Jake Tapper, Shannon Travis and Drew Griffin contributed to this report.

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CNN's Pamela Brown contributed to this report.

CNN: Photographs give a glimpse of Ariel Castro's yard