Murders Way Up in DC:   Homicides increased by about 40% in the nation's capital last year.  Melissa Howell of WTOP reports that there were 534 shootings in DC and the police chief told reporters that 4 of every 10 shooters had priors for gun crimes.  While murders were down in neighboring counties, they climbed from 116 in 2017 to 160 in DC last year.