Investigators found a bloody fingerprint on the passenger-side window of the pickup truck, but until recently they were unable to find a match for it despite running it through the state's ...

Drying droplets have fascinated scientists for decades. From water to coffee to paint, these everyday fluids leave behind ...

Related: Detecting cancer in minutes possible with just a drop of dried blood and new test, study hints The fingerprint differs between patients with cancer and those without the disease ...