The "Vanderpump Rules" star shared the news of the demise his father, Ronald Cauchi's on Twitter.
"My heart is broken, I lost my best friend and the best man I have ever met last night," Taylor tweeted.
"I love you so much dad I can't even breathe anymore, only person not letting me fall right now is my amazing girlfriend (Brittany Cartwright). I love you dad," he added.
Taylor's "Vanderpump Rules" co-stars also took to Twitter to condole the death of his father.
"Jax and his family are going through a really really hard time right now. Please keep them all in your prayers and respect their privacy," wrote Cartwright.