Ally McBeal - Season 3 Episode 16 -

Billy is experiencing hallucinations, he goes to a doctor and finds out his has a brain tumor. It's benign, so they plan on removing it in a few days, after Billy wraps up his current case. During his summation, Billy collapses and is rushed to the hospital. Ally goes back to the firm, and informs everyone of Billy's death. Nell breaks up with Cage.