1.   After three sightseers were killed two years ago, Maddock and his agents focused on a loose-knit group of methamphetamine users from the Central Valley.

2.   For the past four months, investigators working on the Sund and Pelosso killings have focused on a loose-knit group of violent methamphetamine users living in Modesto.

3.   Lila Whittom, once a methamphetamine user and manufacturer, was sent here by a judge.

4.   Social workers say more of the addicts are heroin and methamphetamine users, who have watched the price of their drugs fall even as the purity has increased.

5.   Until then, investigators were focusing on a loose-knit group of methamphetamine users in Modesto.