KATHMANDU: A youth has been arrested for his alleged involvement in a murder attempt on May 12. Police said Suman Lama (25), a permanent resident of Chapakhori-4 of Kavrepalanchok district, was nabbed by a team deployed from the Metropolitan Police Circle on Saturday. He is accused to trying to murder Sharada Shrestha, her husband and her son, residents of Chaumati, KMC-15, on May 12.