by Nikki Junewicz Wednesday, March 17th 2021 Why weren't tasers effective in two deadly Nashville officer-involved shootings? (FOX 17 News) NASHVILLE, Tenn. (WZTV) — FOX 17 News is continuing to investigate what lead up to two deadly officer involved shootings that happened the same day last week. In both situations, the responding Metro Police officer deployed a taser first. And, in both situations, the taser failed to work. FOX 17 News asked Metro Police: Why? What happened?