what becomes of the Adrian lead?

Adrian was held in jail for carrying a concealed weapon but innocent of any other crime. The last mention of Adrian is cited below;

"I think you heard wrong, old man. Yes, sir, I do." Although the past life of Jonathan Daniel Adrian, who was then being held in the county jail on a charge of carrying a concealed weapon, included a period of confinement as a mental patient in Topeka State Hospital, the data assembled by the investigators indicated that in relation to the Clutter case he was guilty only of an unhappy curiosity.

Why u doing discussion questions so late bruh