A documentary about the Internet love triangle that claimed the life of a 22-year-old Lockport man shot outside a Clarence company three years ago, is set to air at 10 p. m. Dec. 13 on the MSNBC cable network.

The hourlong documentary, “Tall Hot Blond,” will also air in an R-rated extended version at midnight that day on iTunes, according to Hollywood director Barbara Schroeder, who recently finished work on the film.

“While the story is salacious, the real reason we made this documentary is to raise awareness that we need some new legislation to govern or help with accountability on the Internet,” Schroeder said.

Brian M. Barrett was fatally shot in the parking lot of Dynabrade Corp. on Sheridan Drive late on the night of Sept. 15, 2006.

Thomas Montgomery, another Dynabrade worker, is serving 20 years in prison for manslaughter.

Montgomery, the 50-year-old divorced father of two teenagers, was having a cyber relationship with a woman from West Virginia, who was using her 18-year-old daughter’s Web page profile to disguise her true identity.

Montgomery was also hiding his true identity, describing himself as a young man home from military service in Iraq.

He had apparently bragged about the relationship at work, and Barrett e-mailed the out-of-state woman — in reality, Mary Sheiler, a 50-year-old West Virginia mother. Montgomery apparently became jealous of Barrett’s Internet relationship with the woman.

Schroeder interviewed Montgomery for five hours and portions of it are part of the documentary.

The production has already achieved critical acclaim, winning the “Best Documentary Award” at both the Seattle Film Festival and the Cinema City Film Festival in Los Angeles.

Overseas, it was one of the top three finalists in the “Best Documentary- First Appearance” category at the I. D. F. A. Festival in Amsterdam.