A 28-year old Mount Vernon man was sentenced to 4 years of sex offender specific probation yesterday in Marion County Court, after pleading guilty to felony sex crimes. Nicholas A. Weikert was charged in July 2012 with aggravated criminal sexual abuse of a victim under the age of 13 and two counts aggravated criminal sexual abuse of a victim more than five years his junior, in that he fondled two young girls. Per the plea agreement, one count was dismissed and he was sentenced to concurrent 4 year probation terms. He was additionally ordered to complete substance abuse evaluation and treatment, abstain from the use of drugs, alcohol or any synthetic drugs, and submit to random drug testing. He is to have no contact with the victims, their mothers, or anyone under the age of 18, with the exception of his biological children.