stealing more than £ 50,000 from his dying mother , blowing the cash on gambling , a holiday and cinema tickets .
when pensioner margaret rylance realised her money appeared to be going missing from her bank account , her concerns were put down to her having alzheimer 's disease .
but in reality her son david rylance , 47 , had been slowly siphoning the money away , spending it on luxuries for himself as well as everyday living costs .
newcastle crown court heard one of mrs rylance 's accounts held just £ 1,000 at the time of her death in july 2013 .