A man became combative on a Frontier Airlines flight from Denver to Houston, punching a seat and window 20 minutes into the flight. Several passengers helped restrain him using shoestrings, belts, and headphones before the plane landed. The incident occurred Tuesday night and Houston police responded to a welfare check call upon arrival. Despite initial concerns, no charges have been filed, but the FBI is investigating due to its in-air nature.
Source: https://kdvr.com/news/local/passengers-restrain-man-who-punched-window-on-frontier-flight-from-denver-police