MIRA LOMA - A Jurupa Valley High School senior suspended for promoting an anti-immigration protest on campus has filed a lawsuit, arguing the school violated his free speech rights. Joshua Denhalter, 18, was suspended for three days in late March after he attempted to organize a counterprotest against pro-immigration-inspired demonstrations and school walkouts. The mass protests were in response to harsher penalties for illegal immigrants being proposed in Congress. "There are two standards. Students can walk out of school, walk on to freeways, and nothing happens to them. I try to do something legally, and I get slapped,'' Denhalter said...