<human>: So one of mine is this: My grandpa tells me about how one of his cousins marries a beautiful woman in south Alabama, and they have 2 daughters and one son. Over time, the woman becomes more and more depressed for whatever reasons. She enjoys visiting their vacation home, though, and she goes more often throughout the year taking the kids with her while the husband is on business. One day, my grandpa's cousin comes to the home after fishing with his son, and there's a note "Come to the beach house, we're going to have a lot of fun". However, my grandpa's cousin thinks this a little strange, this was during the school year, and a little too "spur of the moment". He goes to the beach house, and knocks on the door doesn't hear a thing.  He unlocks the house and finds his wife and his two daughters sitting in chairs over some tea, however, they are all dead. She shot her two daughters before doing herself with a shotgun.

Can you provide a brief overview of the text?
<bot>: My grandpa's cousin married a psychopath who killed her daughters and herself and left a note telling them to meet them.