The husband of Lucy Knight, the woman seriously hurt after intervening in an attempted bag snatch, says the response from the public has been mind-boggling.
Peter Thomas told Campbell Live he wished the events of Tuesday had never happened.
"We'd just like to go back in time before Tuesday. But we are blessed in this country and across the seas, and I'm just blown away by the support and whether it's messages or flowers from strangers or donations, it has been mind-boggling."
Mr Thomas said his 43-year-old wife, a mother of six, was making progress in hospital, but had suffered a huge shock to her body.
"She's just taking it one day at a time, she is heavily sedated but positive signs are that she has been talking with us a bit today on and off."