BOULDER, Colo. (CBS4) – University of Colorado police believe they know who’s behind a series of thefts on several college campuses.

Police want to find Raymond Hamilton, 26, of Denver. He is not a CU student. Investigators believe he stole an iPad from the Visual Arts building on the Boulder campus in July.

Police also think Hamilton might be responsible for stealing multiple laptops, wallets and purses from the Anschutz Medical Campus, from CU in Boulder, and the Colorado School of Mines during the month of October.

Hamilton also has several other active arrest warrants.