Harrington, 37, Clayton McGeeney, 36, and Ricky Johnson, 38, were discovered frozen and dead behind their longtime friend Jordan Willis’ home on Jan. 9, two days after they were all last seen alive inside the house watching the Chiefs play the Los Angeles Chargers.

A representative from Frontier Forensics Midwest LLC told Fox News Digital that their autopsies and toxicology reports had been completed in “late January,” but said that only the Platte County Prosecuting Attorney’s Office could release their results. The latter agency could not immediately be reached for comment.

Preliminary results were shared orally with the men’s family members by Kansas City Police Department detectives in early February – THC, cocaine and lethal levels of fentanyl were reportedly found in the three men’s systems, Fox News Digital previously reported

“If there was a person that knew what was in whatever they consumed that night and didn’t warn anybody, they should be held accountable,” Jennifer Marquez, David Harrington’s mother, told Fox 4. “That’s my fear, it won’t happen… it’s so hard not knowing anything – like not hearing anything.”

Ricky Johnson Sr., Johnson’s father, told Fox News Digital that the Kansas City Police Department had turned his son’s case over to their drug task force.

“I think they need to arrest the guy and get him to talk,” the elder Johnson said on Thursday. “My attorney told me to give more time [for police] to finish the investigation – [I’m] not pleased but I’ll wait a little longer.”