A California man was charged with murder Thursday in the stabbing death of a beloved Burbank 1st-grade teacher earlier this week. The Los Angeles County District Attorney’s Office is charging Sergio Fraire with murder, with a special circumstance of lying in wait, for allegedly attacking and killing Arti Varma in a Burbank, CA home early Monday morning. Arti’s daughter -- identified by neighbors as 25-year-old mental health activist Meera Varma -- was also stabbed in the attack ... she was