Premise: Denis Hale Johnson (July 1, 1949 – May 24, 2017) was an American writer best known for his short story collection "Jesus' Son" (1992) and his novel "Tree of Smoke" (2007), which won the National Book Award for Fiction. He also wrote plays, poetry, journalism, and non-fiction.
Hypothesis: Denis Hale Johnson started writing Tree of Smoke" in 2007.