Murder-suicide suspect's sister says she hopes he will 'rot in hell for what he did'

Allyson Mancuso's brother Jeffrey Mancuso killed his 7-year-old daughter before taking his own life after a bitter custody dispute, according to police.
0:58 | 09/05/18

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Transcript for Murder-suicide suspect's sister says she hopes he will 'rot in hell for what he did'
What was your mind screaming at that point. I hate them. I hate him and although he's dead if that I hate him I'll never forget him. And I wish you run well with. What do you get. That's hard to say given that you spent so much of your life. Protecting him. Yeah. It is. An action. So prudhomme. It is capable of carrying out. In the action and he carried out. Thinking about his hatred and that couldn't overcome you know. He just didn't have the ability to really love.

This transcript has been automatically generated and may not be 100% accurate.

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