killed four people. 17 of those charges carry the death penalty. if he's found guilty on just one of them tsarnaev may be sentenced to death. let's get right to cnn's alexandra field live outside federal court in boston. do we have any indication yet from the jury about how long they might take to deliberate or how they might be lean ghg this case? >> reporter: well, jake, certainly this isn't a whodunit. they've been inside of that room deliberating for about seven hours now. but you'll remember this is a case where in the opening statements the defense said it was him. in the closing arguments the defense said the defendant dzhokhar tsarnaev was ready to accept responsibility for his actions in the form of a verdict. i don't think we'll get a lot of surprises when the jury does timely deliver their verdict. but the guessing game now is when the jury will be able to deliver that verdict. they've got a big job ahead of them. there may be some foregone conclusions in this case, but this is the first opportunity the jurors really have to talk