Doubt are used you must consider the following, a reasonable doubt is not a mere possible doubt, a speculative, imaginary or forced doubt. such a doubt must not influence you to return a verdict of not guilty if you have an abiding conviction of guilt. on the other hand, if after carefully considering, comparing and weighing all the evidence there is not an abiding conviction of guilt or if having a conviction it is one which is not stable but one which waivers and vacillates then the charge is not proved beyond every reasonable doubt and you must find the defendant not guilty because the doubt is reasonable. it is to the evidence introduced ....