Kansas City Chiefs fans’ cause of death revealed after being found frozen in friend’s yard

The causes of decease person been revealed for the 3 Kansas City Chiefs fans who were recovered dormant successful the backyard of their friend's location successful January 2024.

A forensic exam determined David Harrington, 37, Clayton McGeeney, 36, and Ricky Johnson, 38, "all died of fentanyl and cocaine combined toxicity," according to tribunal documents reviewed by Fox News Digital.

The documents uncover what responding officers encountered the time they were called to the Kansas City, Missouri, rental home, wherever the radical of longtime friends had celebrated the Chiefs' triumph conscionable days earlier.

On Wednesday, Jordan Willis and Ivory J. Carson were charged with 3 counts of involuntary manslaughter and 2 counts of transportation of a controlled substance but 35 grams oregon little of marijuana oregon synthetic cannabinoid. Each complaint carries a maximum of 10 years.

SUSPECTS IN KANSAS CITY CHIEFS FANS' DEATHS PLEAD NOT GUILTY

David Harrington, Clayton McGeeney and Ricky Johnson were recovered dormant extracurricular their friend's Kansas City, Missouri, location connected Jan. 9, 2024. (Ricky Johnson/Facebook)

Willis and Carson had tribunal appearances Thursday, joining separately via video from the jail, wearing orangish jumpsuits during their arraignment successful Platte County, Missouri.

Willis’ lawyer, John Picerno, entered a not blameworthy plea connected Willis’ behalf, and the justice entered a not blameworthy plea connected behalf of Carson, who does not yet person an lawyer and plans to use for a nationalist defender.

Deadly Kansas City discovery

McGeeney's fiancée, April Mahoney, called authorities aft discovering the frozen bodies of the trio connected Jan. 9, 2024. The friends had gathered astatine Willis' rental spot to ticker the Chiefs play the Los Angeles Chargers astir 7 p.m. connected Jan. 7, 2024.

Mahoney, according to tribunal documents, grew alarmed that her fiancée had seemingly disappeared – yet going to the location and spotting McGeeney's reddish Ford F-150 pickup motortruck parked extracurricular the residence.

Repeated doorway knocking yielded nary response, starring Mahoney to ascent done a basement window, documents revealed.

"They located an isolated deceased idiosyncratic connected the backmost patio and called police," documents say, without specifying which assemblage was archetypal found.

Court documents enactment that each 3 of the victims were recovered deceased successful the backyard of the home.

TWO CHARGED IN KANSAS CITY CHIEFS FANS' DEATHS 14 MONTHS AFTER BODIES FOUND FROZEN IN BACKYARD

An exterior presumption of the backyard and structure of Jordan Willis’ location successful Kansas City, Missouri, connected Friday, Jan. 26, 2024. The bodies of Willis’ 3 friends – Ricky Johnson, Clayton McGeeney and David Harrington – were recovered successful his backyard connected Jan. 9, 2024. (DWS for Fox News Digital)

When constabulary arrived astatine the single-family home, Mahoney told authorities that her fiancée would portion and usage cocaine. She noted that McGeeney "would get debased connected money," and Willis would "usually proviso cocaine to his friends."

Police wrote successful tribunal documents that they discovered a container of a "white powdery substance" successful the apical drawer of an extremity array and a 2nd container of "white powdery substance" connected apical of the amusement halfway successful the surviving room.

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Willis told constabulary connected Jan. 9 that helium believed McGeeney, Harrington and Johnson had near his location connected Jan. 8 astir 4 a.m., according to tribunal documents. Picerno antecedently told Fox News Digital that his lawsuit went to slumber portion the 4 men were inactive awake and hanging retired astatine the house. 

Picerno besides antecedently revealed to FOX 4 that Willis was dormant with aerial buds and a large instrumentality on.

FAMILY OF KANSAS CITY CHIEFS FAN FOUND DEAD OUTSIDE PAL'S HOUSE THINKS HE WAS DRUGGED

On Wednesday, Jordan Willis, left, and Ivory J. Carson were charged with 3 counts of involuntary manslaughter and 2 counts of transportation of a controlled substance but 35 grams oregon little of marijuana oregon synthetic cannabinoid. Each complaint carries a maximum of 10 years. (Platte County, Missouri Sheriff's Office)

Two different unidentified witnesses, who were contiguous astatine the shot ticker party, told constabulary that they "drank, smoked marijuana and utilized cocaine." One of the witnesses said that helium near "shortly earlier midnight" connected Jan. 8, documents said. 

Another witnesser said that earlier heading to Willis' rental home, helium saw a "large sheet of cocaine allegedly supplied by Mr. Willis that everyone was using" astatine Harrington's home, the documents said.

Court records besides indicated that Carson, who went by "Blade Brown," supplied and sold cocaine to Willis and the victims, and that his DNA was recovered connected a container of fentanyl.

WATCH: Families of Chiefs fans request answers

The Kansas City Police Department said that it investigated the 3 deaths for 14 months earlier charges were filed.

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"KCPD detectives ne'er stopped moving connected the case, waiting for each the facts to travel in. Reaching this constituent is simply a testament to their dedication to delivering justness for the victims and their loved ones," Kansas City Police Chief Stacey Graves said Wednesday.

Fox News' Stepheny Price contributed to this report.