Editor’s Note: The use of pill presses to quickly create dangerous counterfeit pills that kill thousands of Americans annually has skyrocketed in recent years. MassLive has been conducting a months-long investigation into what they are, how they got it, and what’s being done about them. This is the second story in an ongoing series.

On quiet Salem Street in Lawrence, a green Cape-style home hit the market this summer, advertised as “upgrades galore”: granite countertops, stainless steel appliances and copper accents on the roof.