Morgan Park Man Charged with Mother's Murder After Yard Altercation

• Joseph Ruiz, 51, has been charged with first-degree murder in the death of his mother, Benilda Ruiz, 84.
• The incident occurred on March 12 in Morgan Park, Chicago.
• Ruiz was arrested and charged on Thursday.
• The altercation between Ruiz and his mother spilled into their home's front yard before the fatal attack.
• Chicago police and county prosecutors provided the information.