That may be persuasive to the presiding judge. But what's perhaps more interesting is that the poll found a sizable number of Boston residents—42 percent—are still "unsure," indicating that even the population with the closest proximity to the April 15, 2013, act of terrorism still harbor doubts about the "official" version of events.

Without seeing the evidence the government claims to have of the younger Tsarnaev's guilt, and due to many anomalies and lingering questions about the bombing and its aftermath, we're siding with the 42 percent who just aren't sure yet.

Kevin Cullen of the Boston Globe recently expressed surprise about the poll's results in a column in which he wrote: "Call me Pollyanna, but I'm shocked they were able to find the 42 percent who don't think he's guilty." While people answering that they're unsure about Tsarnaev's guilt isn't the same as thinking he's innocent, it does reflect a substantial feeling that the jury is still out in many Bostonians' minds.