Convicted fraudster Stephen Seddon, 46, had once before tried to murder his father, Robert Seddon, 68, and mother, Patricia, 65, by driving into a canal with them strapped in the back seats in a faked road accident.
Seddon then "played the hero" in the aftermath of the "accident" after aborting the murder plan when bystanders went to their aid in the submerged car.
But after that plan failed, four months later he shot the couple to death with a sawn-off shotgun at their suburban home in Sale, Greater Manchester.
His parents had made him sole beneficiary of their £230,000 estate in their will - and paid with their lives.
Today, the father of three, from Benevente Street in Seaham, County Durham, was convicted of two counts of attempted murder on March 20 last year and two counts of murder on July 4, after a five-week trial at Manchester Crown Court.
More top news
Drinking three or four cups a day compared to drinking none was linked to a lower likelihood of developing cardiovascular problems.
More than 157,000 cars rolled off production lines last month, 3.5% more than the October 2016, while exports have increased by 5%.
The chancellor cut duty on homes sold up to £300,000 in his Wednesday Budget, a boon to young people hoping to get onto the property ladder.