The cross was set ablaze behind an Arroyo Grande home in March 2011.
Prosecutors have charged 32-year-old Jeremiah Hernandez, 36-year-old Jason Kahn, 24-year-old Sara Matheny and 20-year-old William Soto with arson, conspiracy and hate crime allegations. They have pleaded not guilty and they remain in jail.
The Santa Maria Times says the prosecutor and four defense lawyers on Thursday ended closed-door plea-bargain discussions, including some attended by the judge, without a deal.
Prosecutor David Pomeroy wouldn't discuss what deals were offered.
The trial date in May hasn't been determined.
Information from: Santa Maria Times, http://www.santamariatimes.com/