it's sort of an ebb and flow of different kinds of police vehicles. for example, this morning, we saw a lot of tactical units that were coming in. the snipers, the tactical team. once they pulled out, then the forensic team came in to search a location. and we're trying to figure out who may have lived at that location. now what you're seeing is you're seeing an area that was surrounded by a number of police vehicles. an individual, we are told, was on the ground. they were questioning him. now we're seeing some cars pull out. others pull in. so it's just -- it is really an ebb of flow of activity here. and they're very, very interested in this area. we can't state that enough. this is an incredibly unusual show of police force. you've got boston police, state police, medford police, you've got all different locations across the state. you've got f.b.i., atf, s.w.a.