Udupi: Following the arrest of Praveen Arun Chougule, a 39-year-old Air India cabin crew member, for the brutal murder of a 21-year-old woman, Aynaz M, and three members of her family in Udupi district, police investigations have revealed the motive behind the crime was "jealousy and animosity," stemming from an alleged intimate relationship between the accused and his young colleague, an Indian Express report has stated.