A gay person is the last person the CIA would chose as one of its agents. It’s too easy to turn them by threatening to expose them.
A gay person is the most logical person for Jim Garrison to choose to prosecute with a bogus case. Such a person cannot present any character witnesses because they may be asked, by the DA, under oath, if they know anything about the defendant being a homosexual. A disaster for the defense given the attitude of the public in the 1960’s towards gays. The people that the defense can call upon to testify is greatly restricted.