More relatives of murder victim arrested

The brother-in-law of murdered mother Nicole Montalvo on Monday was named a person of interest in the ongoing murder investigation.  

The U.S. Marshals Office on Friday arrested Nicholas Rivera, 28, in Newman, Ga. on eight counts of child pornography unrelated to the murder. He is in the process of being extradited to Florida.

“If we have to obtain a governor’s warrant from the state of Florida to bring him back here, he’s coming back here,” Osceola County Sheriff Russ Gibson said at a press conference Monday. “He’s going to face every charge we’re going to place on him.”

Gibson said the man was arrested after his phone was examined by detectives as part of the Montalvo case.

Montalvo’s mother-in-law also was arrested Friday. Wanda Rivera, 59, faces charges of tampering with evidence and lying to Osceola County Sheriff’s Office.

The two arrests came a week after deputies arrested Montalvo’s estranged husband, Otero-Rivera, 31, and his father, Angel Luis Rivera, 63. They both are charged with first-degree murder and are being held at the Osceola County Jail on no bond.

It was unclear Tuesday whether Wanda Rivera had been bailed out of jail. Her bond was set at $100,000.

Otero-Rivera also was charged with violating a domestic injunction related to his relationship with Montalvo and for violating probation. His father faces an additional charge of possession of a weapon by a convicted felon, according to jail records.

Montalvo’s remains were found at two Rivera family properties — on Hixon and Henry J avenues — in rural St. Cloud. It took two days before they were positively identified.

Christopher Otero-Rivera had been staying with his parents at their home on Hixon, where Montalvo was last seen dropping off the couple’s son on Oct. 21. The 33-year-old woman was reported missing two days later after not picking him up from school.

The investigation into her murder continues despite the four arrests.

“I absolutely do believe that there’s going to be some other folks brought into this investigation. I will be asking personally the prosecutor to keep the death penalty on the table,” Gibson said.

“This is not something you can rush. This is something that you have to take time with to make sure that we build such a solid, such a solid case that these people will not see the light of day.”