MIRA LOMA A high school student sued his school district after he was suspended for distributing flyers about an off-campus rally against illegal immigration. Joshua Denhalter, an 18-year-old senior at Jurupa Valley High School, said he sought permission to hold a demonstration after a school assembly turned into a virtual rally supporting illegal immigrants. School officials denied his request, saying a protest could lead to violence. Denhalter said he then tried to organize an off-campus rally in March and was suspended for three days for passing out flyers about it on school property. He said he also was told he...