That is good.
Actually, they may not have, after all. I just scanned thru Special Agent Cieplik's affidavit. It states that they recovered the backpack from the landfill and found the emptied fireworks, a jar of Vaseline, and a UMass homework assignment sheet for a class Tsarnaev was taking. No mention of the computer being recovered, although it does state that the accused did take the computer from Tsarnaev's dorm room.