Outzen was recently diagnosed with HLH, hemophagocytic lymphohistiocytosis. It's a rare disease where the body's immune system doesn't work normally.

Former Florida State quarterback Marcus Outzen passed away on Tuesday at 46 years old. According to the Tallahassee Democrat, Outzen was dealing with complications from HLH or hemophagocytic lymphohistiocytosis which is defined as a severe,

Marcus Outzen’s son, Colton, shared the news of his father’s death on social media. He had complications with a rare immune deficiency disorder, according to the Tallahassee Democrat.