Attacks in France sparks comparisons to Boston bombing Former Boston police commissioner weighs in . There are still no hard answers, but lots of anguish .\r
\r
Attacks in France sparks comparisons to Boston bombing Former Boston police commissioner weighs in .\r
\r
There are still no hard answers, but lots of anguish and questions, a day after back-to-back explosions rocked Americas oldest and most prestigious marathon.\r
\r
Investigators are trying to establish a motive for the Boston Marathon bombings. Specialist teams are waiting to interview Dzhokhar .
