John Curtis wanted to really punish Jo for stopping him, for not letting him live his disgusting fantasies much longer - "Means To An And" seriously re-interpreted, framed within Jo/Mac.
Story Notes:Author's Note: This story will include references to torture and rape. If you're not comfortable with that, this might not be your kind of story to read. I've studied crime for so many years now and have always had an issue with Means To An End (season 8, episode 9) that way. John Curtis was portrayed as the sort of felon who typically feeds on 'obsessions' (sexual intercourse, bondage), also believing himself absolutely invincible, that feeling only intensified by earlier successes not to get caught. Often enough, felons like those are intelligent, which is exactly why so many victims are made before police manage to identify them. As such, I don't believe that Curtis wouldn't be any more enraged, wouldn't vow to really punish Jo for being the direct cause for him ending in jail to begin with –– degrading her, like his prior victims. I don't believe he wouldn't know about the bullet in the gun's chamber either. This interpretation is mostly criminological/psychological. I did frame this in JAC-ness to soothe my soul..