Rizzoli & Isles: Season 4, Episode 10

4 - 10: Built for Speed

When a late-night amateur drag race turns deadly, the squad works quickly to solve what turns out to be a particularly dangerous case. As evidence unfolds, Jane suspects that the motive for murder may have been an attempt to conceal drug trafficking. However, when she turns to Lt. Martinez (guest star Amaury Nolasco) for help he seems to be thwarting her investigation.