Ken Grimwood

Kenneth Milton Grimwood (1944-2003) was an American fantasy author best known for his novel Replay (1986), which won the 1988 World Fantasy Award for Best Novel and became a bestseller in Japan. His works often explored metaphysical themes like time loops, immortality, and telepathy, including Breakthrough (1976), Into the Deep (1995), and others published under the pseudonym Alan Cochran. Grimwood died of a heart attack in Santa Barbara, California, while working on a sequel to Replay. LA Times Obituary