Max Wade, the 19-year-old Marin man serving a lengthy prison term for a shooting ambush in Mill Valley, has been transferred to the maximum-security state prison in Corcoran.

Wade, who was sentenced in January to a 21 years to life term, spent an interim period at San Quentin State Prison while authorities decided where to place him.

Terry Thornton, a spokeswoman for the state prisons department, said officials determined Wade should be placed at a Level IV prison, the most secure. Wade's case earned him notoriety for his sophisticated planning and nimble elusiveness, and his supporters once tried to help him break out of jail.

Although Wade was held in relative isolation while he was at San Quentin, at Corcoran he can move among the general population in the yards and communal areas, said prison Lt. Anthony Baer.

Thornton said the prisons conduct annual reviews of the inmates' security classifications, so it is possible that Wade, who has family in Marin, could be transferred to a lower level prison at some point.

Corcoran State Prison, which sits between Fresno and Bakersfield, is about 240 miles and four hours from San Rafael.

Wade was convicted of trying to murder Landon Wahlstrom, 18, in 2012. Wade, then 17 years old, rode a motorcycle up to Wahlstrom's truck in Mill Valley and repeatedly fired a gun into the cab.

Wahlstrom's girlfriend, 17-year-old Eva Dedier of Terra Linda, was also sitting in the truck, but the jury found insufficient evidence to prove Wade was trying to kill her as well.

The prosecution said Wade launched the attack because he desired Dedier for himself and was jealous that Wahlstrom was dating her.

The jury also convicted Wade of stealing a $200,000 Lamborghini from a San Francisco dealership in 2011. The car belonged to Guy Fieri, the restaurateur and television chef.

Wade, who turns 20 in August, can start applying for parole in 2040, according to the prisons department.

Wade is appealing his convictions.

Contact Gary Klien via email at gklien@marinij.com or https://twitter.com/GaryKlien