That was a heartbreaking press conference. He was choking back tears. Some key moments via a press article:
He confirmed he has suffered a number of recent seizures, including two shortly before a practice this week as the Gophers prepare for Michigan.
"I don't want to be a liability," he told reporters. "I don't want somebody to have to worry that I'll drop on the field. I don't want to coach from the press box. I want to coach the way I've coached for my whole life. And I still want to coach."
Kill says his wife, his children and hopefully future grandchildren will need him in the future more than football does. The decision is clearly a heart-wrenching one for the coach, who is struggling with the questions that are coming.
"I know somebody will ask, 'Coach, what are you going to do?' I don't know," Kill said, choking back tears. "I ain't done anything else. That's the scary part. ... Last night, when I walked off the practice field, I feel like a part of me died."
Even as he faced this announcement, Kill said he was wrestling with the decision.
"I was at practice yesterday after having two seizures. I probably wasn't supposed to go there," he said. "I made my decision but I said, 'Maybe not. Let me go out here and give it one last shot.'"
Ultimately, he felt he needed to listen to his doctor -- a person Kill admits he fought against for far too long -- and take care of his health so he can be there for his family. He also said he wanted to be fair to the team.
"I've never listened to a doctor. Ever," he said. "When I had cancer, I was cut open and I was out on the road recruiting in five days. But I'm going to listen this time. Cause that gal, my two kids, my brother and my mom ... need me more."
"I don't have any energy left. None. I've left it all right here in the great state of Minnesota and I have no regrets."
The coach spoke of not being able to think right due to the stress of his job and physical struggles. He told reporters that during a recent night his wife stayed up with him all night, as he managed just one hour of sleep -- a scenario that's become commonplace in their household.
"Probably the most sleep I've gotten over the last three weeks is three hours or less," he said. "She stays there, sits in a chair and watches me. That's what she did last night. Hell, that ain't no way to live. I've taken years off my life and hers. But we both say we'd do it again, wouldn't we? Damn right."
His doctor said if he continued down that road, it would do irreversible damage.
"If I can give anybody any advice: Count on your health, instead of your wealth," he said. "Count on God, instead of yourself. At the end of the day, if you don't have your health and you don't have God, you ain't gonna make it."
The news of his retirement comes just over two months after Kill signed a contract extension that raised his salary to $2.5 million a year.
"I've never stole from anybody and I'm not going to steal now," Kill said. "I'm walking away from a lot of money."