What a Rat
JD knows that the Silicians are trying to find peace between the families, but suspects the heavy sent out to deal with it is a rat. The heavy is Massimo Torini and he has a heli about to take off at the mansion.
By Road, By Air
Get to Sal's mansion in 1 and-a-half minutes or less to see Massimo take flight. He will follow the roads (why?) and then he will land at the construction site. He is a rat - he's making a promise to the Diablos that they've got this territory. His next stop is one you'll have to get close into - a talk with Triads. One stops you and Massimo will escape. Kill all of the Triads here to pass the mission.