Pune Mar 25 PTI A 16-year-old speech-impaired boy was allegedly sexually abused and strangled to death by a man in Maharashtras Pune city police said on Friday The police have arrested a 21-year-old man who allegedly killed the boy and dumped his body in a gunny bag in Kothrud area on Thursday evening an official said We have arrested a man who lives in a dwelling next to the victims house in Kothrud senior inspector Mahendra Jagtap of Kothrud police station said The accused has been arrested under sections 302 murder 201 causing disappearance of evidence 364 kidnapping and relevant provisions of the Protection for Children from Sexual Offences POCSO Act he said The accused first sexually abused the boy and strangled him to death before dumping the body in a gunny bag the official added PTI SPK ARU ARU