Mayra Posada and Marco Jaimes believe in the power of persuasion.So much so that the two Weston Ranch High seniors looked forward to serving as the defense in the mock trial case of Shannon James Jacobson vs. the State of California.On trial was Jacobson alias Shaky. The character was accused on first degree murder in the shooting death of Jerry Lee Lewis otherwise known as Sneaky Pete. The incident was played out in a Dec. 17 exercise in Joe Waller’s Careers in Law Enforcement classes, a Regional Occupational Program of the Manteca Unified School District.Posada and Jaimes argued that their client – fellow WRHS senior Gilbert Lozoya was called on prior to the mock trial to fill the role of Shaky, according to Waller – acted in self defense during the Star Bar brawl.The victim, Lewis, was listed at 270 pounds while Jacobson is “135 pounds soaking wet,” said Posada.Harmit Sanghera and Vivek Kamboj were the prosecuting attorneys.