She was arrested and the kid lived. The “good Samaritans” were dumpster-diving.
I used to do a lot of dumpster diving (very profitable where I live). Thankfully, I never found a baby, although I always had a plan in the back of my mind for if I did. I did find the odd thing here and there, or observe something in my early morning travels that I called the police about. I’m glad those folks showed up.
What a coincidence these people were there, and heard the baby.
But I find this also interesting. Is dumpster diving something regular for them? If so, what do they hope to find? I noticed they pulled up in a nice car, too. So I assume they are not destitute.