Cocaine and other illegal drugs were reportedly found in toxicology reports from the three Kansas City Chiefs fans who were found frozen to death outside a home last month.

Family members of David Harrington, Clayton McGeeney and Ricky Johnson had been anxiously awaiting the results of the report to offer clues as to what happened to the three friends before they were discovered outside Jordan Willis’ Kansas City rental home on Jan. 9.

Drug use has been speculated as a contributing factor in their deaths. Willis checked himself into rehab for substance abuse after his three friends were found dead, according to his parents.

This is a developing story. Please check back for more updates.