TNIE reported that the couple were in a relationship for over 6 years and the man was angered after he spotted his ex with another man. Prashant came to her and took out a pen knife and slit her throat. When Soniya was taken to the hospital, she was declared brought dead.
Later that evening, Prashant surrendered at the Peekingkaranal police station. A police officer told The New Indian Express that Prashant was enraged after Soniya broke up with him and refused to get back into a relationship with him.
Soniya was working in Tambaram and Prashant was a mechanic in Urapakkam. More details are awaited with regards to his prosecution.