Cottage Grove police have reported that Liam McKinnon has been arrested, bringing a close to at least three open investigations within the city. The incidents date back to February 2 when an unknown individual robbed Dave's Corner Market at knifepoint. A month later, on March 3, Safeway Pharmacy was robbed as well. In April, the pharmacy was hit again at knifepoint. McKinnon will be held on Robbery I charges.