(Surprisingly, the news snippets have not covered this yet...)
A woman was caught smoking in the restroom of an airplane, and the smoke detector was messed up. After being forced out of the restroom, she went ballistic, threatening to “kill everyone on the plane." Watch a short video recorded by one of the passengers:
Irate passenger threatens to 'kill everyone on flight' - KPTV - FOX 12
After the plane landed in Sacramento, the woman was taken into police custody.