Pacheco was defeated on June 8, 2010, in his bid for a second term as Riverside County District Attorney.

He received his Bachelor of Arts in Political Science and Sociology from the University of California, Riverside in 1980.

He was sworn in as District Attorney on the steps of Riverside County's Historic Courthouse by California Supreme Court Chief Justice Ronald M. George.

Pacheco was defeated on June 8, 2010, in his bid for reelection as District Attorney by Riverside County Superior Court Judge Paul Zellerbach.

[2] After the election, Pacheco said in a statement to the Press Enterprise, "It has been my honor to serve the citizens of Riverside County in a variety of capacities for many years.