If she knows, or thinks she knows where he is and can pass that information onto the authorities, yes. Believe it or not, they aren't always on top of things. I had an exbf who had gotten into drugs and became a huge POS (he stole from me, a single mom at the time, and pretty much everyone he could), so when I saw in our county's newspaper that he was wanted, I called in a anon tip on where to find him. All they'd had to do was Google his name to see that he'd started a business, and where it was! A year or so later I saw that a friend of his was wanted. I Googled his name and OH POW there was his obituary from a few months before. I let the detectives know that, too. We're not in some little town, either, we're just outside a major city, but they're like Keystone Cops over here.