Cyberstalker Trick

"Cyberstalker Locates Victim by Enhancing Reflection in Her Eye":

Following his subsequent arrest, Sato told authorities he identified a bus stop and other scenery in the eye reflection, then used Google Maps to match it to a real-world location.

He said he was even able to estimate the floor the pop star lived on by analyzing the windows in her photos and noting the angle at which sunlight hit her eyes.