PATNA, Oct. 10 -- Patna police on Thursday apprehended a 15- year-old boy and his mother in connection with the rape of an 8- year-old girl before being killed by electrocution under the jurisdiction of Athmalgola police station in Barh sub-division, officials said. The girl was found dead on Wednesday evening, with her hands tied using copper wire and her head wrapped in a sack, police said. Police said that she was raped before being killed by electrocution....