Holden pictures and describes himself dead multiple times. One time he describes all the jerks that will be at his funeral because he thinks hes going to get phenomena. Another time is when he was sitting at Pency looking out the window. He contemplates whether or not he'd rather be dead. The last time is when a pimp beat him up for five dollars and he says again he wishes he were dead instead of sitting there crying.
In Salinger's The Catcher in the Rye, Holden suffers from Depression exhibiting symptoms of isolation and suicidal thoughts. I believe he has depression because of the signs he shows. Such as, isolating himself, even if he is lonely and having many suicidal thoughts. Holden is not only suffering from this disease but is also trying to get through normal life as a teenager.
Salinger, J.D. The Catcher in the Rye. Little, Brown, and Company, 1951.
National Institute of Mental Health. "Depression." National Institution of Mental Health, Oct. 2016, https://www.nimh.nih.gov/health/topics/depression/index.shtml