Court records show a 17-year-old charged in the murder of Saniyah Nicholson was wanted at the time of the shooting.
The 9-year-old girl was killed as she sat in her family's car in the 4000 block of Lee Road last week.
Police say she was caught in the crossfire when two groups began shooting at each other.
Juvenile court records show four of the six people now charged in her killing had been found delinquent on felony charges before.
That includes the 17-year-old who was picked up by CMHA police a month earlier.
Police say the teen, whose name isn't being released because he's a minor, was in a car with a loaded, concealed gun.
The next day, court records show he denied the charges and was sent to a juvenile "shelter care" facility.
He was supposed to stay there until a July court hearing.
Documents obtained by 5 On Your Side Investigators show the teen walked away from Cleveland Christian Home May 29.
Two days later, a judge issued a warrant for the 17-year-old, but police didn't find him until after the little girl was killed and the teen was charged with killing her.
In April, News 5 told you about issues at another of the centers housing juvenile offenders after East Cleveland police received reports of 15 teens walking out of Carrington Youth Academy in one weekend. At that time, Cuyahoga County Juvenile Court officials said they were concerned about the issue, but stressed that workers at shelter care facilities cannot physically stop a teen who wants to walk out the doors.