Why DNA Report Could Be Most Important Evidence In Kolkata Rape-Murder Case

Sources say once the results of the DNA report are in, it will be clear whether one or multiple people were involved in the crime.

With anger rising over the horrific rape and murder of a 31-year-old trainee doctor at Kolkata's RG Kar Medical College and Hospital, the report of the DNA samples collected from the victim's body and the accused will likely become the most important piece of evidence in the case, sources said.

Several theories have emerged online that attempt to explain the brutality inflicted on the doctor. One of those theories claimed that there was more than one accused in the crime. 

So far, Sanjoy Roy, a civic volunteer at the hospital who assisted cops in traffic management, is the sole accused in the case. Roy was arrested after a CCTV camera in the hospital captured him entering the emergency building around 4 am on Friday, the same location where the doctor's body was found in the hours later. Another big clue was a Bluetooth headset, that connected to his phone, found next to the victim's body.