California police probe if fatal attack on man outside his Trump-themed home had political motive

Butler made his first court appearance last Friday, pleading not guilty to attempted murder and other charges. He is due back in court on 3 June.

“The case is in the process of being presented to the San Diego County District Attorney’s Office, which is reviewing the circumstances to determine whether charges will be amended,” police said on Monday.

The district attorney’s office did not immediately respond on Thursday to the BBC’s request for comment.

Butler had severe PTSD and intense paranoia following his career in the US Navy, according to friends of his cited by US media.