Forensic tests point to suspect’s hand in Kolkata doctor’s rape-murder

Forensic tests confirmed that traces of blood and skin found under the nails of the murdered 31-year-old doctor matched those of Sanjay Roy, the arrested suspect. This evidence was deemed crucial. Roy’s policewoman sister disowned him, demanding the harshest punishment. CM Mamata Banerjee urged a fast-track trial, insisting the perpetrator must be hanged.