Police said the item was found by a member of the public in Aberdeen on Thursday evening.
The driver of the vehicle has been taken to hospital following the smash on Monday.
Police said a body found in the River Leven had been formally identified as Ms Murphy.
The collision happened in the Highlands shortly before midnight on Friday.
The 12-year-old was accosted while walking along Station Road West in Aberdeen on Tuesday afternoon.
A 27-year-old woman was pronounced dead at the scene in Paisley on Saturday night.
Margaret Grant, 79, died in hospital following a disturbance at her home in Edinburgh last Friday.
Jasmine Herron, 19, and father-of-three Jonathan Graham, 37, died in the road crash in Argyll.
Siobhan Malley, 31, has been missing from Renfrewshire since Tuesday.
The incident happened in Shuttle Street, Paisley, on September 9, 2018.
Police Scotland said it would offer Gary Webb an unreserved apology.
A man has been arrested and charged in connection with two robberies.
A 79-year-old woman died following an incident in Edinburgh on Friday night.
The 63-year-old man was pronounced dead at the scene after being struck in Edinburgh.
The two robberies and one attempted robbery were carried out in Glasgow and East Dunbartonshire on Friday.
A 26-year-old man died after a Ford crashed at Camperdown Park in Dundee.
The 74-year-old singer was charged following an alleged altercation involving his son at a Florida hotel.
The safe was stolen from a business in Bristo Square in Edinburgh on Wednesday morning.
When officers arrived at the crash site in Midlothian, no one was in the car.
The 77-year-old man has been left shaken by the 'cowardly crime', which police branded 'despicable'.