Man arrested, body found at his McKinney home, Collin County authorities say

A McKinney man was arrested this week in connection with someone found fatally shot at his home over a month ago.
Mark Anthony Horak, 65, was arrested Thursday and faces a charge of tampering with or fabricating physical evidence with the intent to impair a human corpse, online jail records show. It is unclear if he has an attorney.
Olutoyosi Molomo, 30, was found dead July 31 at Horak’s residence on Billy Mitchell Drive, officials with the Collin County sheriff’s office said.
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Deputies responded to a report of an unconscious man at the home. The county medical examiner’s office performed an autopsy and determined he was killed by a gunshot wound.
Horak altered the crime scene after Molomo died, officials said. He remained jailed Friday morning with bail set at $350,000, records show. No additional information was released.
Officials in the sheriff’s department ask anyone who knows what led up to Molomo’s killing, or who has other relevant information, to come forward and call the Criminal Investigations division at 972-547-5161.