The runaway is alive, at least, and his foster mother is pretty sure his drug-addict biological mom has taken him to California. The cops are about as disinterested as they can be, possibly because the kid in question is 16 and male and with biological relatives, despite the fact that they were stripped of their parental rights because of, oh yeah, that little major drug problem. They told the foster mom to call them if she figures out exactly where he is and then maybe they'll try to get him back.
My ex, who works for the division of state government that encompasses Child Protective Services, says the cops are fairly worthless in cases like this until CPS and the foster care system get on their asses. I hope that happens soon. I just want the boy to come home so my son can get his life back on track--it's not every day that the guy you've been best friends with since fourth grade just disappears--and then I want to hug him and strangle him. Haven't decided which order those will happen in yet.