NEW DELHI, June 27 -- The triple murder of an elderly couple and their nursing attendant in South-west Delhi's Vasant Vihar that left Delhiites shocked has been cracked, police claimed.

Preeti Sehrawat (42) and her live-in partner Manoj Bhatt (29) were arrested from a hotel in Gurugram by police on Wednesday. Frustrated with their financial losses, the duo had initially planned to rob elderly couple Vishnu Mathur (78) and Shashi Mathur (75), but ended up killing them and the attendant, Khushbu Nautiyal (24).

The bodies of the elderly couple as well as their attendant were found with their throats slit at their residence in Vasant Apartment on Sunday.

"On June 17, Preeti, a family friend of the elderly couple, visited the Mathurs and st...