WEST COVINA (CBSLA.com) — Religious freedom advocates are calling on the West Covina Unified School District to adopt policy changes and issue a formal apology after an alleged incident involving bullying against a Christian student. Advocates for Faith & Freedom, an Irvine-based nonprofit law firm, issued a letter Monday on behalf of Isaiah Martinez, a first grader at Merced Elementary School who took traditional candy canes as Christmas gifts for his teacher, Valerie Lu, and classmates on Dec. 13, 2013, according to attorney Robert Tyler. Each candy cane came with a message attached that recited the history of the candy...