Det Supt Matt Fenwick from South Yorkshire Police, who led the investigation into Alan Greaves' death, said he suffered an "appalling" attack.
"In a matter of minutes, Jonathan Bowling and Ashley Foster had left an innocent man for dead."
He said: "Most of all my thoughts today are reserved for Alan's widow Maureen and her family, who have displayed great strength and dignity in such ghastly circumstances.
"I can only hope that today's verdict will bring some solace to them, Det Supt Fenwick added.
More top news
Glaucoma is the biggest cause of permanent blindness and affects 60 million people around the world - a tenth of whom are completely blind.
United Airlines has apologised for its initial response after a passenger was injured as he was forcibly removed from an overbooked flight.
It is said that the teenager attacked and raped the woman, in her forties, on April 19 near to a park in Kidbrooke, south-east London.