MINNEAPOLIS (WCCO) -- The Willmar teenager who killed his friend's grandma explained exactly how he did in a disturbing confession.
Brok Junkermeier, 19, admitted to choking and then stabbing Lila Warwick at her home last summer.
He'd hatched a plan with her grandson to steal her money. After he forced her to write a check to him, he strangled her for 20 minutes.
When that didn't work, he got a dagger.
"Why were you stabbing her?" investigators asked in the video confession. Junkermeier responds without emotion, saying: "I didn't think she was dead."
Bank security cameras caught Junkermeier cashing the check Warwick wrote to him.
He told police he confessed, because of the video evidence and he thought she had cameras in her home.
What does the teen think he is guilty of?
"First, I would say first-degree murder," Junkermeier said in the confession. "Is homicide even in there? Is that the same thing? I'd say premeditated murder."
Junkermeier pleaded guilty Wednesday to first-degree, premeditated murder.
He's slated to be sentenced next week.
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