As the investigation into the death of Olivia Pratt-Korbel draws towards the end of its second week, it is clear extensive forensic work has been paying dividends.
Yesterday Merseyside Police revealed the gunman who killed the nine-year-old St Margaret Mary's Primary School pupil fired two different weapons during the shooting, on Kingsheath Avenue, Dovecot, on Monday, August 22.
Detective Chief Superintendent Mark Kameen, head of investigations, said he considers anyone willing to hide those guns in the "same category as the vile man responsible for this murder", adding "and we will hunt you too".