CA Shooting Issue: Can Police Deal With Dementia Sufferers? By Crime and Justice News | December 15, 2016 LikeTweet EmailPrint More More on Policing Subscribe to Policing Police in Bakersfield, Ca., killed Francisco Serna, 73, believing he was armed. He carried only a wooden crucifix. Serna may have had dementia, which an expert says means he may have been mistaken for a criminal because of his unusual behavior. Subscribe or log in to read the rest of this content.