Antony Snook, 45, Riley Tolliver, 18, and three teenagers aged 15, 16 and 17 – who cannot be named for legal reasons – were all found guilty of the double murder last Friday.
Snook, a one-legged landscape gardener, did not get out of the car but was convicted under joint enterprise, with jurors told the murders could not have been carried out had he not driven the killers to and from the scene.
He was given a life sentence today with a minimum term of 38 years.
Jailing him, judge Mrs Justice May said it was 'impossible to fathom' why he had agreed to drive the four boys in his car to the area.
'The boys you took were then 14, 15, 16 and 17,' she said.
'The three younger ones had long knives. The 17-year-old had a baseball bat. The recovered knives were truly fearsome.
'You would have experienced the atmosphere in that car. Felt the blood lust. Mason and Max, tragically in the wrong place at the wrong time.
'It took those boys 33 seconds to chase and stab Mason and Max. All of this was captured by the CCTV camera on the front of Mason's home. It is profoundly distressing viewing.'
The mothers of the murdered boys both gave heartbreaking statements setting out the impact of the killings.
Max's mum Leanne Ekland said: 'I sat on the ground with Max's head between my legs, telling him to open his eyes. He said he just wanted to sleep.
'The paramedics were working on him, cutting away at his clothes. He was so pale.'
Ms Ekland told how she screamed after being told at Southmead Hospital that her son would not survive his injuries.................please watch thank you..........
