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Chicago Police Superintendent, Garry McCarthy on Monday said gang rivalries are involved in some of the most recent shootings that occurred over this past weekend but that "lax state and federal gun laws" thwart the department's efforts, according to a CBS news report on Monday.

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Long Weekend of Gun Violence Leaves 37 Wounded, Four Fatalities

A 17-year-old juvenile, whose name is being withheld, on Monday, appeared in Central Bond Court, at 26th and California in Chicago, and was charged with first degree murder following a verbal altercation that occurred on the 3000 block of W. 53rd Place, early Sunday morning.