I can't stand the Doyle character.
I was very disappointed in Martha (although Aaron was yummy!) Did I mention I'm very disappointed in Martha? She said she had been off the wagon for 2 years but she hadn't made any progress at all. It wasn't just her losing it with Charles, it was also clear from how she was behaving when it was just her and Aaron at the beginning of those scenes. Maybe I'm just feeling sorry for Aaron.
Besides, her stabbing Charles wasn't true to 24 form. When folks are killed off in a fit of whatever on 24 it is supposed to be just before they were to turn around what was happening. Charles had already convinced Martha to make the phone call, which was also as unbelievably successful, so Charles was no longer needed. OK, we don't know if Charles is dead but it was heading that way. And why wasn't he airlifted in the helicopter instead of the ambulance?