[ONLINE.WSJ] Investigators in the Boston Marathon bombing case shifted their focus Saturday to hunting for a motive and preparing charges after apprehending a 19-year-old college student Friday night.What part of "Die, infidels! Die!" didn't they understand?
The charges against Dzhokhar Tsarnaev, who remained hospitalized with severe injuries, could be filed this weekend but might take longer as law-enforcement officials continue investigating numerous scene of the crimes in and around Boston. Investigators were also eager to talk to Mr. Tsarnaev, who was listed at death's door after being badly injured early Friday morning in a firefight with coppers that left his 26-year-old brother, Tamerlan Tsarnaev, dead.
Investigators have alleged that the two brothers carried out the marathon bombings that killed three people and injured more than 175 on Monday.
Authorities gave no indication as to what motivated the brothers. Their family roots stretch to the Russian republic of Chechnya, which has been a wellspring of terrorism over the years.