An October trial date was set Thursday in Yuma County Superior Court for the former corrections officer at the state prison in San Luis who allegedly stabbed his ex-girlfriend to death late last year.

In asking for a date to be set, attorney Robert Trebilcock of the Yuma County Public Defenders Office, who represents Isaac Abraham Rivera, requested that the trial be held sometime later this year, preferably in the fall.

Trebilcock initially had asked for a continuance during Thursday’s hearing, saying he may have to go on a week-long trip about the same time, but Superior Court Judge Roger Nelson denied the request.

Judge Nelson explained to Trebilcock that if he does need to take the trip during the trial, the court would allow him to go and postpone it until he returns.

Rivera, who is being held without bail at the Yuma County jail, has been charged with one count of first-degree murder per domestic violence in the stabbing death of Leticia Martinez.

When asked how long he thought he would need for the trial, prosecutor Josh Salisbury of the Yuma County Attorney’s Office replied about eight weeks.

After hearing from both counsel, Judge Nelson scheduled Rivera’s trial to begin at 9 a.m. on Friday, Oct. 2. The trial is expected to end in December.

Judge Nelson also scheduled a status hearing for 8:30 a.m. on May 7 and a final pre-trial conference on for Sept. 3, also at 8:30 a.m.

According to Somerton police, officers responded to the 700 block of East Angelica Street at 11:42 p.m. Oct. 26 after receiving a 911 call reporting a stabbing at the location.

When officers arrived they found a female victim, identified as Martinez, with stab wounds. She was later pronounced dead at the scene.

Information gathered by Somerton police officers during the course of their investigation led to Rivera being identified as a possible suspect. The following day the Yuma County Sheriff’s Office received potential information of Rivera’s whereabouts.

However, since the location that was provided was within city limits, the Yuma Police Department was notified.

A short time later, Yuma police officers arrested Rivera at an undisclosed address without incident.

James Gilbert can be reached at or 539-6854. Find him on Facebook at or on Twitter @YSJamesGilbert.

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