Siobhan McAndrew and Marcella Corona

Wilbur Martinez-Guzman was formally charged after he allegedly pawned stolen jewelry that belonged to at least two of the murder victims who were recently found dead in their homes, according to court documents.

Martinez-Guzman, who was 19 when he was arrested by police on Saturday night and was held on immigration charges, has been named the only suspect in four murders.

He will hear the first of what likely will be more charges against him in a court hearing in Carson City on Thursday.

The Washoe and Douglas County district attorneys have murder charges in the deaths of Connie Koontz, Sophia Renken and Jerry and Sherri David expected this week.

Koontz, 56, was found dead inside her home in Gardnerville Ranchos on Jan. 10. On Jan. 13, Renken, 74, was found dead in her home about a mile away.

David, 81, and his wife Sherri, 80, were found in their South Reno home on La Guardia Lane on Jan. 16.

Read more: What we know about Wilbur Martinez-Guzman, held in connection with four Nevada homicides

Martinez-Guzman was charged with a total of nine counts of burglary-related charges, according to a criminal complaint filed Wednesday at the Carson City Justice Court.

The complaint showed Martinez-Guzman faces three counts of burglary; one count of possession of stolen property worth $650 to $3,500; two counts of possession of stolen property worth less than $650 (a misdemeanor); and three counts of false pretenses to obtain less than $650.

He allegedly pawned the jewelry at a coin shop on North Carson Street on separate occasions. The stolen items included an Elks ring with a blue stone that was engraved with David's initials, the complaint said.

That also included two gold diamond rings and 16 silver rings, toe rings and turquoise rings, all of which belonged to Koontz.

The 1:30 p.m. hearing is expected to only address the charges of burglary, possession of stolen property and obtaining money under false pretenses.

Carson City Sheriff Ken Furlong said a public defender will be named for Martinez-Guzman at the hearing on Thursday. He also said he believed Martinez-Guzman has already met with an attorney.

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Details on hearing

The hearing, where Martinez-Guzman will appear in person and not via a live stream, is expected to take about 30 minutes.

The courtroom is open to the public and will seat 55-60 people.

It will be the first court appearance for Martinez-Guzman, who was arrested at 4:30 p.m. Jan. 19 in a parking lot at the Carson Mall.

Authorities said he was taken into custody after he was under surveillance by police after a tip connected him to the murders.

Little is known about Martinez-Guzman, who is undocumented. Police said they believe he has been in Northern Nevada for about a year.

He was not on the radar of police and has family who live in the area.

He turns 20 sometime this month, according to police.

Furlong said on Wednesday that his office has been contacted by a member of the consulate of El Salvador. He said his office may be setting up a meeting between a member of the consulate and Martinez-Guzman.