In the first conviction in the December 16 gangrape case, the juvenile accused was today found guilty of murder and rape of the 23-year-old girl but he got away with a maximum of three years imprisonment mandated under the juvenile law.br br The juvenile who was six months short of 18 years--the age of majority--was, however, acquitted by the Juvenile Justice Board of attempt to murder of the paramedic's male friend, who was the sole eye witness to the dastardly incident that shook the nation.