42 Weekend Shootings in Chicago:  Of the 42 people shot in Chicago last weekend, five died including a 16-year-old boy.  Morgan Greene and Elyssa Cherney of the Chicago Tribune report that the weekend leading up to Halloween was the second bloodiest of the year.  As usual the bulk of the shootings were in minority neighborhoods on the West and South sides of the city.  The first fatal attack occurred at 10:30 am Friday in West Garfield Park when a man walked up and shot two young men, killing one 20-year-old, and injuring a 17-year-old.  On Monday there were six more shootings, as reported by the Chicago Sun Times.  One shooting, which involved a man shot multiple times on the Dan Ryan Expressway, shut down the freeway during Monday's rush hour.  As of Monday night, none of that day's shooting victims had died.