The co-defendant of convicted swindler Gary Armitage was sentenced to nearly 43 years in prison Friday during a sentencing hearing at Shasta County Superior Court.

James Stanley Koenig was convicted of conning scores of investors out of an estimated $250 million through a complex Ponzi scheme.

Armitage, a Healdsburg native, took a plea deal on the eve of trial and is serving a 10-year prison sentence.

A Shasta County jury convicted Koenig in May of 35 felony counts, including securities fraud, as well as two counts of first-degree burglary.

Koenig was arrested in 2009 with Armitage and Jeffrey Guidi, his partner in AGA Financial, who pleaded guilty to a charge of misdemeanor securities fraud.