Dehradun, Oct. 6 -- A plumber was arrested on Tuesday for allegedly killing an elderly couple and a domestic help with a screwdriver following an argument over payment for his service in Vishnu Lok Colony in Dehradun, police said. The victims were identified as Rajni Kapoor, 75, and her husband Ramesh Kapoor, 80, and their domestic help Tiliya Devi alias Sheela, 48, who lived in Vidya Vihar.

The accused, identified as Raj Kumar, a native of Bijnor in Uttar Pradesh who has been living in Dehradun for five years, was allegedly called by the couple to carry out plumbing work in the bathroom and kitchen of their house where they lived alone. Police said he was performing services at the victims' house for the past two years.

According to po...