Prayers needed !

My husband Roy was feeling pretty good today,until early this afternoon. He was talking on the phone with his brother, then wrote out checks for some bills. I bagged the garbage to take out, and Roy said he was going to the post office 4 blocks away to drop off the bills, and he would take the bag of garbage out. He never made it to his truck to go to the post office. He passed out by the garbage can in the back by the alley. He never even got the bag in the can.
I had gone upstairs when he left, and I didn't know this happened. I was upstairs putzing, and I hear the back door bell. I run to the back door, and Roy is half laying on the stairs.I got him in the house, and yelled for my youngest. We got him on the dining room chair, and then moved him to the sofa in the living room. He was white and cold. He was semi-conscious. He mumbled that he couldn't hang on anymore, that he was going to let go.His chest hurts.
Right now, he is drifting in and out of sleep. He will be sorta up for a minute, and then back to sleep.He doesn't want to go to the hospital, All we can do is stay by him and comfort him. My youngest is sitting with him right now.

I will update when I can.