Cat Euthanasia vs Shelters Utilizing TNR DAHS has consistently euthanized more cats than almost all other public Virginia animal shelters. The contrast with those that utilize Trap-Neuter-Return (TNR) is especially stark. 2020 2019 2018 2017 2016 2015 2020 2019 2018 2017 2016 2015 Data Source: Animal Custody Records, Virginia Department of Agriculture and Consumer Services, 2020 Page Visits:1022