Unfortunately, this is old news. There's now a site called PETA kills animals, but there's also other news media sites that have carried the story in the past. http://www.huffingtonpost.com/2015/02/05/pets-shelter-euthanization-rate_n_6612490.html
this has been going on for years, with estimates of a 95%+ kill rate of animals they have caught, or worse, had been surrendered to them by owners that could no longer take care of the animals and wanted them put in a no kill shelter.