I'm still not sure why Jacko was protecting the person who turned out to be the murder. Initially he would have been implicated if he started pointing fingers, but after his alibi wasn't showing up, it would've made sense to shift the blame. I guess real feelings could've been involved? Also, just because a person was killed does not mean they should be crossed off the suspect list. Their death could have been the result of having a partner in crime, or it could be an unrelated murder altogether. Also, the resolution was somewhat lacking. I felt there were many unresolved issues within the family that could've totally caused the murder. Oh well.