Father Jealous of Daughter

I stumbled across an article that upset me very much. This individual was jealous of his 22- month old daughter who just finished her battle of cancer. He was so jealous of the attention she was receiving, so he killed her. This breaks my heart so much. I mean what kind of sick person would do such a thing? Ryan Lawrence obviously. Lawrence pleaded guilty to first-degree murder and is sentenced to 25 years in prison. In my opinion, I think he should receive a life sentence because that poor child already suffered enough with cancer and did not deserve anything that horrible man did.