A German court has acquitted two members of the Hells Angels motorcycle gang following a two-year murder trial. The judges at Duisburg Regional Court said on Friday that the two suspects could not be proven to have played a role in the grisly killing of a fellow Hells Angels member in 2014. The victim – a gang member suspected of treason – was killed by a shot to the back of the head. The body was dismembered, stowed in barrels, covered in concrete and dumped in the water. But despite the extensive effort to conceal the crime, walkers discovered a severed tattooed arm of the dead man in the Rh…