The other man, Jones, had been sleeping outside the arena when the explosion happened.
In an interview with ITV News, he said:
It's just instinct to go and help if someone needs your help and it was children. It was a lot of children with blood all over them - crying and screaming. We were having to pull nails out of their arms and a couple out of this little girl's face.
Just because I am homeless doesn’t mean I haven’t got a heart, or I’m not human still. I’d like to think someone would come and help me if I needed the help.
A GoFundMe page set up to help out Parker has already amassed over 40,000 pounds, and a similar page on JustGiving has raised equal funds for Jones.
Parker's estranged mother even reached out, saying, "This is my son and I am desperate to get in touch with him. We have been estranged for a very long time, and I had no idea he was homeless. I am very proud of him, and I think he might need me right now."
Many took to Twitter to praise the two men:
After the outpouring of support, Jones told ITV News:
I had tears in my eyes when I was reading some of the comments that people have put. But I'm no hero. I don't class myself a hero. I class myself as a normal citizen that would have done the same as anybody else would have done.
Spoken like a true hero.