Two 17-year-old boys and a man charged in connection with Falkirk incidents on Saturday night.
Matthew Hume, 50, has not been seen since the early hours of Monday morning.
Stewart Watson lost control of his car and smashed through a brick wall.
Since 2009, Real Jobs Falkirk has supported youngsters with additional needs from Carrongrange High School.
The family of Jeanette MacRae, 75, believed she may have taken the wrong route driving home.
Police searched St Mungo's High School on Monday after the correspondence was reported by staff.
The pedestrian was taken to hospital with a serious injury following the incident in Falkirk.
Zilvanas Popovas, 38, knifed Tomas Svezas, 22, during an argument in Falkirk.
SGN is working to restore supplies to thousands of people who have been affected by the problem.
Thousands of properties were affected during freezing conditions after a fault in the gas network.