Why did Don Draper's brother kill himself? Don's rejection and attempt to bribe him to go away, following so hard on the deaths of the rest of his family, sent Adam into a depression. Not long after sending Don the old family photos, Adam hanged himself.

What happened to Don Draper's brother?

Not long after sending Don the old family photos, Adam hanged himself. ("Indian Summer") After a change of heart, Don tried to reach Adam and discovered that he had committed suicide. Don was devastated to lose the only member of his family that he cared about and for whom he had affection.

What is Don Draper's illness?

He's an escapist in a lot of ways." The diagnosis: A deep-down narcissist who may never change. "Don definitely meets the clinical description of narcissistic personality disorder — grandiosity, lack of empathy, and obsession with one's own power.