The owner of the shawl, British author Russell Edwards, claimed the matches proved Kosminski was Jack the Ripper. Others disagree. Donald Rumbelow criticized the claim, saying that no shawl is listed among Eddowes's effects by the police, and mitochondrial DNA expert Peter Gill said the shawl "is of dubious origin and has been handled by several people who could have shared that mitochondrial DNA profile." Two of Eddowes's descendants were in the same room as the shawl for three days in 2007 and, in the words of one critic, "The shawl has been openly handled by loads of people and been touched, breathed on, spat upon."