A Los Angeles Fire Department (LAFD) captain is under investigation after he spoke against the city’s COVID-19 vaccine mandate while in uniform, the department said on Aug. 23.   Capt. Christian Granucci, a 31-year veteran of the LAFD, posted a video to the Telegram App this week calling the vaccination requirements for city employees “medical tyranny,” and said he would likely “catch total grief” from his department for the video. The video went viral online after journalist Jasmyne Cannick posted a clip of the video to Twitter.   “This is not a political issue, this is not left/right, this is not vax/unvax. This is a fight for freedom of choice, free will,” Granucci said in the video. “This is a fight against tyranny.”  Last week, the Los Angeles City Council passed an ordinance requiring city employees to receive at least one dose of a COVID-19 vaccine by Sept. 7, unless an individual requests a medical or religious exemption.  Granucci, …