Thane, Oct. 12 -- A man allegedly stabbed his 70-year-old father to death at their home in Dombivli East on Friday after learning from neighbours that his father allegedly had physical relationship with his wife, police said. The accused was arrested after local residents caught him and alerted the police.The father and son lived in the Pisavli area and worked as daily-wage labourers at nearby factories, according to the police. The accused's wife had gone to her hometown, and the two men had been living alone. The son allegedly learnt from neighbours that his father had been sexually exploiting his wife while he was away at work. He confronted his father about the allegations on Friday morning. The confrontation soon turned violent, with the accused attacking his father with a sharp weapon and stabbing him in the abdomen. The elderly man died on the spot, police said....