Criminal complaint: Teen confesses to witnessing murder, helping hide Olivia Mackay's body

KENOSHA — According to a criminal complaint, 17-year-old Jamari Cook has confessed to helping hide Kenosha teenager Olivia Mackay’s body after witnessing 19-year-old Daniel Tate strangle the 17-year-old to death.

Cook told investigators all three got into Mackay’s car on July 23 and drove to the lakefront in Racine.

The teen said he witnessed Tate hugging Mackay, and decided to give them space. When he turned around, he saw Tate strangle Mackay and then hold her body underwater. The two first met online, according to the complaint.

Cook told investigators he decided to help Tate hide Mackay’s body afterward because he said, “There was no going back now.”

“He puts himself at the scene of the murder that he observed Mr. Tate commit the murder,” said a prosecutor during Cook’s initial appearance in court.

Both Cook and Tate are also accused of stealing Mackay’s car to dispose of her body.

Mackay’s body was found days later dumped on the side of the road in Mount Pleasant, covered in garbage bags.

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