Pittsburgh's mayor and its police are bracing for possible retaliation after last week's ambush shooting at a cookout in neighboring Wilkinsburg that killed five people and an unborn child.
A funeral for one of the victims was Monday and the four other victims will be laid to rest at funerals on Saturday and Tuesday.
That's why Pittsburgh is beefing up patrols in some areas that border Wilkinsburg, especially the crime-ridden neighborhood of Homewood. Investigators have said bad blood by some individuals there may have led to the shootings on March 9.
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Nobody has been charged. Police say one gunman with a pistol fired, prompting the cookout guests to run toward a house for cover, where they were mowed down by another gunman with an assault rifle.