article_snippet: Darrow also explained how cell sites (or towers) in the Sprint network tracked the phone calls, and thus tracked the direction they were driving.
article_snippet: Another cell phone representative also testified.
article_snippet: T-Mobile engineer Patrick Quinn testified about the data transmissions from Lloyd cell phone beginning on June 17, 2013, at 2:32 a.m.
article_snippet: Data transmissions are the automatic updates that are sent to cell phones.
article_snippet: Assistant District Attorney Patrick Bomberg methodically walked T-Mobile engineer Patrick Quinn through data transmissions received on Lloyd cell phone via multiple cell towers along the route Assistant District Attorney Patrick Bomberg traveled from Dorchester to the industrial park in North Attleboro.
article_snippet: The last cell tower was just 400 yards from Lloyd body.
highlights_snippet: Jurors also heard details about cell phone records and cell towers .