By PETER ORSI, Associated Press MEXICO CITY (AP) — Stiletto heels. Clogs. Trainers. Tiny, child-size Crocs. Activists placed hundreds of painted-red women's shoes on Mexico City's sun-drenched main square Saturday to call attention to gender-based violence in a country where, on average, 10 women and girls are murdered each day and less than 10 percent of the cases are ever solved. As residents and