The family of a Massachusetts man killed in the Sept. 11, 2001 terrorist attacks says in newly released court documents that security problems at Boston's airport the day of the attacks are to blame for the death.

The documents allege that private security screeners at Logan International Airport were not made aware of the terrorist threat from al-Qaida, did not know what chemical Mace was, and had trouble communicating in English, says a Boston.com report.

The suit against the airlines and the security company was brought by the family of Mark Bavis, who died when his flight from Boston was flown into the World Trade Center's south tower.

Bavis' twin brother, Mike, tells the Boston Herald that it is "shocking" that it took longer than nine years for the details to come out