His wages can be garnished IF you can find him and his employer--to garnish his wages, you must be able to serve the appropriate paperwork on the employer. The state will not do this research for you to find him--you have to find him yourself and provide this information when you seek garnishment. There are some attorneys who are very good at this (at finding those who are trying to avoid their obligations and forcing them to pay): try consulting with some family law attorneys, who may do this in the course of helping cients collect alimony or child support. If you don't locate any who can help you, try attorneys who specialize in collections.