Police have submitted charge sheet against Obaidul in the murder case of Willes Little Flower School and College eighth-grader Risha.Ali Hossen, Inspector (investigation) of Ramna Police Station and also the Investigation Officer of the case submitted the charge sheet to a Dhaka court on Monday.‘Police submitted the charge sheet against Obaidul,’ Ali Hossen told Jagonews.A total of 26 witnesses have been kept in this case, he said.Risha was stabbed by a stalker in front of her educational institution at Kakrail in Dhaka on August 24.She died from her wounds at Dhaka Medical College Hospital on August 28.Victim’s mother Tania Hossen filed a case with Ramna Police Station in this connection on August 24.The killing of Risha has created a widespread protest across the country.