CBS4 Investigates

• Fullerton police investigating hit-and-run that left pedestrian in critical condition

  

• Man dead, another injured after shooting on CTA Pink Line train in downtown Chicago

  

• 5 people hurt in multi-vehicle crash on Route 53 in Lombard, Illinois

  

• Authorities investigate toddler's death in Monroe, Michigan

  

• Roseville girl found unresponsive in home dies; couple arrested as suspects

  

• Video shows aftermath of Pennsylvania nursing home explosion that killed 2

  

• Flood watch issued for San Joaquin County through Dec. 26

  

• Woman stabbed to death in Upper Darby, Pennsylvania, police say