Question: What is the cause of death of Joseph P. Kennedy Ii's father?
Sentence (from "Robert F. Kennedy"): Shortly after winning the California primary around midnight on June 5, 1968, Kennedy was mortally wounded when shot with a pistol by Sirhan Sirhan, a 24-year-old Palestinian, allegedly in retaliation for his support of Israel following the 1967 Six-Day War.
Relevant evidence: Yes