Person questioned in 9-year-old's slaying jailed on unrelated charge

CHICAGO (WLS) -- A person previously questioned in the shooting death of 9-year-old Tyshawn Lee is back in police custody and charged with an unrelated crime.

It's not uncommon for police to keep a close eye on someone who they think may have been involved in a murder. A source says that's what happened when police got a tip that a convicted felon had a gun. Police say they found two on him when they arrested him in Oak Lawn.

It's been two weeks and a day since Tyshawn was gunned down in a South Side alley. Police say he was

targeted for a relative's gang ties.

On Tuesday night, a police spokesperson confirms a 27-year-old felon whom detectives previously questioned in Tyshawn's death is locked-up on an unrelated gun charge. Those two guns are now being run through a police database to see if they can be linked to any crimes.

If detectives were hoping the arrest would coax him into cooperating, a source says that hasn't happened. Instead, he lawyered up.

Silence has been a problem since Day 1 for investigators hunting Tyshawn's killer.

Late Tuesday evening, police said in a statement: "CPD will continue to use every legal resource to build the strongest prosecution possible and hold Tyshawn's killers accountable."

Tyshawn Lee's aunt told ABC7 late Tuesday that his family just wants his killer to be caught.