Complex sentence: Bunker Hill was renamed Grissom AFB in honor of Virgil I. "Gus" Grissom, an Indiana native and the second American astronaut to fly in space, who perished in the Apollo 1 launch pad fire of January 27,1967.
Split into simpler sentences: Bunker Hill was renamed Grissom AFB in honour of Virgil I. "Gus" Grissom, Indiana native and the second American astronaut into space. He perished in the Apollo I launch pad fire of January 27,1967.