After three students from Gunn High School in Palo Alto committed suicide this year by lying down for their final nap at the East Meadow Drive crossing, Caltrain plans to hold a press conference today. With the most recent suicide occurring last week -- a 13-year-old girl killed herself a little before 11 p.m. on Friday night -- former Palo Alto Mayor Victor Ojakian, who lost his son to suicide, spoke out about the tragedies. "To make sure that individuals who are in a state of maybe despair or hopelessness know there are other options other than taking their lives," he said. "To look at not just what is happening on Caltrain or with this particular incident that involves another Gunn student but to look at the County overall and try and do something about suicide prevention." The Santa Clara County Mental Health Director also announced a new "suicide task force" to help curb the problem.