Salem homeless: Caregivers test ways to help hospital's most frequent users

Richie Gregg lives in his foreclosed childhood home and the only reason he’s still alive is that they haven't shut off the electricity. Even with a ventilator pushing air into the 43-year-old's deteriorating lungs, he often wakes up in the night gasping for breath. Sometimes he can’t gather enough to yell for help — he certainly can’t call an ambulance. So he throws whatever is in reach at the back of his bedroom door until his housemates wake up.