“Sitting at a big wooden table at Ken Ruzicka’s home on a cold November morning in Fire Island Pines, the 79-year-old artist and landscape designer is telling me how he acquired the table. We’re surrounded by space heaters, which keep the one-story cottage warm, and his own artwork, accumulated from more than 40 years of painting; a smell of summer mold hovers in my nose as Ruzicka explains that the table comes from famed furniture designer and friend David Ebner, for whom he made a garden in exchange for the table many years ago. Ruzicka is a natural storyteller, but he knows why I’m here. In art and literary lore, he’s known for being the driver that hit poet Frank O’Hara near Crown Walk by the Pines on July 24, 1966. O’Hara, then known more as an art curator at the Museum of Modern Art, also wrote and published…