A suspect was (ARRESTED) being questioned by Chicago Police on Sunday in the fatal shooting of 6-month-old Jonylah Watkins in March, a law enforcement source said.

If This Sticks, Nice Pinch

A long involved involved investigation:

• A suspect was being questioned by Chicago Police on Sunday in the fatal shooting of 6-month-old Jonylah Watkins in March, a law enforcement source said.
  
  The man was taken into custody Saturday and was being questioned by Area Central Detectives, the source said.
  
  Jonylah was struck by a bullet on March 11 as she sat with her father in a minivan in the 6500 block of South Maryland. Her father, Jonathan Watkins, was shot three times.

And why did it take so long to make an arrest? This comment gives some insight into what cops and detectives are up against each and every day:

CLICK FOR THE FULL SECOND CITY COP POSTING - Especially regarding the new ghetto wear   "#NOTALKING" clothing