adcelannotate = {"mobilepaywallcategory" : "MOBILE_PREM-LOCAL","nativepaywallcategory" : "NATIVE_PREM-LOCAL"};CLEVELAND — A Cleveland police officer’s shooting of a 12-year-old boy in a city park a year ago was unreasonable, experts hired by the child’s family said in reports an attorney wants submitted to a grand jury considering charges in the case.