    Sentence s Datsen | 20 was: arrested. and.  changed: on July 21 whe veportedly telling  banthorities he shot Dennehy after Pewethy  tried to’ shoot him.    Sentence 2: Dotson was amested July 21 sic  telling FBI: agents. he shot Dennehy: when  Dennehy tried to’ shoot: him, according tothe    arrest waménit affidavit :    