Progress on the investigation into Lillia's death was made through a "combination of intelligence and information supplied by several members of the public", police say.<br />A man has been arrested on suspicion of murdering nine-year-old Lillia Valutyte in Lincolnshire.<br /><br />Police said the 22-year-old suspect was held in the "Boston Central Park area" at about 2.45pm on Saturday and is now in custody.
