matthew, higa, accused, throwing, toddler, freeway, walkway, made, his, initial, appearance, yesterday, in, district, court, hands, shackles, was, represented, by, public, defender, alen, kaneshiro, right, entered, plea, not, guilty, showed, no, emotion, during, among, spectators, courtroom, shelton, s, father, he, said, son, has, history, drug, abuse, as, well, mental, health, problems, walked, down, hallway, away, from, where, answerd, questions, reporters, outside, after, murder, charge