The Saga Continues

The great big ball of crazy that is my sister continues to roll forwards and crush anyone in its path.  It's so amazing how I can love her and feel protective over her one day, then want to strangle her with myself and dump the body in the river the next.
I honestly think my sister belongs in an insane asylum.  She is diagnosed bipolar, but I think theres a whole lotta other nuts going on in her brain.  She doesn't seem to feel sympathy or empathy.  She thinks she is infallible.  That she will never be scathed by her actions....regardless of the fact that she already has!
But, she is most likely going to jail again.  She is a kleptomaniac.  She will steal anything not tied down...and even that if you give her long enough to work at the knots.  She will steal food, clothes, hygene products, dishes, toys, knick knacks, and anything else she feels like.  She cannot walk into a store or house without filching something.  She has stolen so much food that it rots before it can be consumed.  She steals clothes that don't fit her. She can't help herself.
Well, the other day she was standing outside a store waiting on her boyfriend.  It's right beside a liquor store.  Apparentley she had lifted booze from that store several times and never been caught.  But while she was waiting a clerk showed up to open the store and saw her.  She has a distinctive tattoo they caught on camera.  The clerk confronted her and called the cops.  Plus, she got busted stealing from ANOTHER store.  I hope she does jail time.  I pray for it.  Does that make me a bad person??
Plus, her daughter is 16...shes a pretty messed up kid.  But she tries to stay good...so hard.  She has this dog...she loves this dog...and the dog broke its leg.  KC called around and begged until she found a vet who would fix the leg and let her make payments.  It's a 1500 bill.  She works and does odd jobs for cash to pay off the bill.  April is mad at her, so she is planning on going down to the city and registering the dog as hers, then selling her.  And since it will say that the dog belongs to her there won't be any way for KC to stop her.  Now, KC is the owner at the vet and there are a ton of people to say the dog is KCs but she is panicking because her mother is trying to take her dog to get even with her and shes scared she will succeed.
AAAAANNNNDDD April tossed KCs room and took a bunch of clothes and makeup that wasn't hers, claimed it was, put a lock on the basement door and snap showed.  She won't even let KC use a winter coat (she works at 6am before school for a couple hours) to go to work and told her she could freeze to death for all she cared.  KC is not under Aprils care, but it seems like my mum is getting all caught up in the April show again and forgetting her other responsibilities.
My other sister brought it up to my mum and my mum got angry.  April was mwant to be gone from my mothers house by now.  But once again she won't boot her.  She put a lock on the basement door....where the freezer and washer and dryer are.  She won't allow KC into the basement to do laundry or get food.  Her and her boyfriend came to physical blows the other day.  Now April will be embroiled in a court case and it will all be pity her pity her pity her.  And mum is going to get eaten alive all over again.
I wish somebody here got it....I wish I could find someone going through it all too....so that the people I talked to didn't look at me with vapid eyes and pretend to understand to make me feel better.