Fitness model hit by train tripped during filming, friend says Gregory Plitt, the fitness model and reality TV star killed Saturday, was filming video for his website, trying to get action shots when he tripped and was struck by an oncoming train, friends said. "He just made a mistake," his friend Warren Coulter said Monday. Plitt, 37, was struck by a southbound train while filming about 4 p.m. just north of the Burbank Metrolink Station, police said. Coulter said Plitt was trying to get action photos and may have acted like Superman as he filmed a video for his website. Plitt"s girlfriend, Christina Stejskal, said he was "just trying to get the best shot." "He wanted to push things to the limit," said a weeping Stejskal Monday. Metrolink officials said Plitt and his film crew did not have permission to be on the commuter railroad"s right-of-way. It is considered trespassing, a misdemeanor offense, to be on or near railroad tracks without authorization. Plitt had used the same stretch of Burbank railroad tracks for filming other fitness videos, lifting barbells and doing push-ups on the tracks. Coulter said Plitt, a West Point graduate, was featured in more than 250 magazines. He was featured on the Bravo reality show "Work Out" and appeared on the soap opera "Days of Our Lives" as well as in films such as "Terminator Salvation" and "Grudge Match."