Posts by Mauricio Garcia on a Russian social networking site suggest that he planned for weeks before he opened fire at a suburban Dallas shopping mall last weekend, killing eight people and wounding seven others.
Garcia, 33, researched when the mall in Allen was busiest — Saturday afternoons — and posted photos on social media in mid-April of a store near where he ultimately started his attack last Saturday, which ended with police killing him. Among the dead were two elementary school-age sisters, a couple and their 3-year-old son, and a security guard.
