Outside reading

I read an article online. About a women who tried killing her disabled sister...
According the the article a women tried killing her 52 year old disabled sister. She was charged for attemptive murder, arson, and elder abuse for allegedly torching her apartment. The sister wasnt hurt. I dont know why she tried killing her sister. and the article didnt say.
This is a very sad situation. sisters are suppose to be like best friends. no matter what they look like, or how different they are. but not to these sisters. apparently one of them doesnt really like the other one. which is sad. i dont have a sister. but a couple people in my life seem like sisters to me, and i couldnt imagine ever wanting to kill them, or them wanting to kill me.