Federal law enforcement officials are sharpening their focus on the widow of the dead suspect in the Boston Marathon bombings after finding al-Qaeda’s Inspire magazine and other radical Islamist material on her computer, according to law enforcement officials.

The probe of the computer belonging to Katherine Russell, 24, the widow of Tamerlan Tsarnaev, is part of the effort by investigators to determine whether Russell knew anything about the April 15 bombing plot or helped the Tsarnaev brothers hide from authorities, according to the officials, who spoke on the condition of anonymity to discuss the ongoing investigation.

I have to say, I've been really skeptical of this person since day-1. Not that that makes me a genius, or unique, but this is not surprising to me. I'd also say, however, that even if she's as innocent as a babe in swaddling clothes, she'd better be very wary that Dzokhar is likely to turn on her to make his lot in life easier. Her parents and family are well liked in their Maryland community, but that could change if people start to think she's sitting on information to hide her own involvement, no matter how deep or shallow it may have been. I'll be happy to be wrong about her, but I'll also be surprised.