Political motivation to Galluccio investigation?

At Mass. Revolution, Andy wonders why now for the investigation into whether Cambridge City Councilor - and state Senate candidate - Anthony Galluccio caused a multi-car accident in downtown Boston this past December while under the influence:

I sense that this is being played out because of the impending Senate race and I think that that is unfortunate for those voters in that Senate district.

However, that would require the Boston police, EMTs and residents who were involved to actually care about a Cambridge/Somerville state senate race, no?