CNN  —  Two men have been sentenced to four years and three months each in prison for felling a landmark sycamore tree in northern England. Daniel Graham, 39, and Adam Carruthers, 32, were both found guilty of two counts of criminal damage in May, one relating to the tree itself and the other to Hadrian’s Wall that it fell on, according to the UK’s PA Media news agency. The pair were sentenced in Newcastle Crown Court in northeast England on Tuesday. The tree had stood sentinel on the Roman-