KOCHI: A 54 year-old home nurse looking after a woman stabbed her son to death. The incident happened late last night at Palarivattam in Ernakulam. The dead has been identified as Thobiyas (34) of Kellaparambil House on the Pallisseri Road. The Palarivattam Police has taken into custody home nurse Lawrence of Thrissur in connection with the incident. He is being questioned and most probably his arrest would be recorded in the afternoon. Though seriously injured Thobiyas was taken to a private hospital in the district, his life could not be saved. Lawrence was appointed to take care of Thobiyas’ mother having some health issues. Police said Thobiyas was a drug addict. He used to engage in a verbal dispute with his family members very often. The police strongly believes that a verbal dispute might have occurred and this may have led to the crime. The inquest has been completed under the leadership of Palarivattam sub inspector. Thobias was a bachelor staying with his mother and sister.