Detectives arrested and later released four people aged between 15 and 19 in connection with the crime. Two further arrests (both teenagers) were made, but both suspects were soon released on bail pending further enquiries. The police appealed to the public for information, stating that they needed help in finding those who had committed the crime. The murder weapon was described as a black handgun with a long barrel. More than 300 officers and gun crime specialists were deployed in the hunt for the killer.