(CNN)-As 19-year-old Dzhokar Tsarnaev remained in serious condition in a heavily guarded Boston-area hospital early Saturday morning, talk turned to what's next for the accused Boston Marathon bomber.
President Barack Obama let it be known that he's keenly interested in answers.
"There are still many unanswered questions," Obama said. "Why did these young men who grew up and studied here as part of our communities and our country resort to such violence? How did they plan and carry out these attacks? And did they receive any help? The families of those killed so senselessly deserve answers."
Tsarnaev and his older brother, Tamerlan Tsarnaev, are accused of setting off bombs at the marathon Monday, killing three people and leaving more than 170 wounded.
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