On the eve of her funeral, Chicago police Supt. Garry McCarthy said investigators were making progress in the search for Hadiya Pendleton's killer.
"It's at a very, very -- it's at a critical point where there are some things we expect are going to make a difference in the very near future," he said at Friday at a detective graduation event at Navy Pier.
McCarthy declined to offer details, however, fearing it would compromise the investigation.
He said getting information and details from those who were with Pendleton when she was shot has been difficult because they're so scared.
"It took our detectives almost 24 hours to track down the other kids that were there because they're afraid," he said.
Pendleton was killed last Tuesday at Kenwood Park on the city's south side days after she performed at some of President Barack Obama's recent inauguration festivities. The top cop said neither Pendleton nor the students with her were involved in gangs. Instead, he said he believes the group was mistakenly targeted by gang members.