Arcaro was last seen in Lisle, Illinois on February 22, 2007. He resided in a townhouse in the 2700 block of Weeping Willow Drive in the city, and was employed doing maintenance work for an apartment complex. He left his home with a friend in the friend's pickup truck. The friend claims he dropped Arcaro off back at his home at approximately 5:00 p.m. He has never been heard from again. He was reported missing by his girlfriend the day after his disappearance, after he missed work and none of his friends could get in touch with him.

It is uncharacteristic of Arcaro to leave without warning; he normally called his loved ones on the phone several times a day, but none of them have heard from him since he went missing. At the time of his disappearance, he was thinking of starting a pizza business with his friend and he and his girlfriend, a nursing student, were considering marriage. Although there is no evidence of foul play in Arcaro's disappearance, his loved ones fear for his safety. His case remains unsolved.