There on an island and a killer named puppeteer starting killing people or something?

Puppetmaster?

I know what you're talking about. Its with Val Kilmor and made around 2007. Google Val Kilmor's movies for around that time.

K. I'm back. I found it for you. Its called "Mindhunters". That was driving me nuts.

Thanks it was driving me insane as well lol