In some people, the jaw, head, legs, or arms are affected by resting tremors. Mostly these tremors are noticeable and a reason people will seek medical attention, but usually they do not cause problems in functioning as much as the other symptoms of Parkinson's disease do.
If what you're asking is about deposit account fraud, then the answer to your question is that if the face amount of the check was less than $500.00 then it is a misdemeanor. The maximum possible jail time for a misdemeanor is 12 months in the county jail and the minimum is a monetary fine. If the check was for more than $500.00 then it is a felony punishable by a maximum of 3 years in prison and a minimum of 1 year on probation.
That is probably charged as an aggravated robbery, which is a level 3 person felony. That carries a prison sentence between 55 months and 247 months. If he indeed has no prior record, the presumption is prison for 55 to 61 months. This could be potentially reduced (or increased), especially if a plea deal is reached.