Caitlyn Jenner was met with mixed responses after sharing an icy two-word response to news that O.J. Simpson died from cancer at 76, RadarOnline.com has learned. O.J. passed away in Las Vegas on Wednesday, surrounded by friends and family, after battling prostate cancer. “Good Riddance,” the famed Olympian wrote via her X platform, formerly Twitter, on Thursday, garnering support from some social media users while others turned their attention on her past. “I know you not talking,” one critic replied, linking to an article about Caitlyn being sued over a fatal car accident that left one woman …