FBI seeks fugitive in 2 Tacoma slayings The shooting deaths occurred in 2010

The FBI announced the addition of Santiago "Pucho" Villalba Mederos to the "Ten Most Wanted Fugitives" list Monday for his alleged part in two 2010 slayings in Tacoma. The FBI announced the addition of Santiago "Pucho" Villalba Mederos to the "Ten Most Wanted Fugitives" list Monday for his alleged part in two 2010 slayings in Tacoma. Photo: Courtesy FBI Photo: Courtesy FBI Image 1 of / 114 Caption Close FBI seeks fugitive in 2 Tacoma slayings 1 / 114 Back to Gallery

The FBI added a wanted Tacoma gang member to its "Ten Most Wanted Fugitives" list Monday for his alleged part in two 2010 slayings.

The agency is offering up to $100,000 to anyone with information leading to the arrest of Santiago "Pucho" Villalba Mederos, 26. Authorities believe he may be in Mexico and advise the public he should be considered "armed and extremely dangerous."

Mederos is accused of a Feb. 7, 2010 double-shooting that killed a 20-year-old woman and seriously wounded her 19-year-old brother.

While allegedly looking for possible rival gang members, Mederos came upon the siblings while they were stopped at a stop light in their car. Because of the color of their vehicle, Mederos reportedly chased them and fired several shots into the car while stopped at another traffic light, according to the FBI.

Pierce County charged Mederos with first-degree murder, attempted first-degree murder, first-degree conspiracy to commit murder and illegal firearm possession in December that year.

Mederos then allegedly went to collect money from a person with fellow gang members on March 25, 2010. The group broke into and ransacked the person's vehicle. Several witnesses confronted the group and a fight ensued, reports indicate. Mederos allegedly fired a single gunshot into the crowd of bystanders, which killed a 21-year-old man.

Pierce County prosecutors charged Mederos with second-degree murder five days later. He has warrants for his arrest in connection with both killings.

A federal court then issued an arrest warrant Sept. 30, 2016, after being charged with unlawful flight to avoid prosecution, the FBI says.

Mederos is reportedly a member of the Eastside Lokotes Sureno gang and has ties to the states of Guerrero and Morelos in Mexico, federal authorities report. He speaks both English and Spanish and was 19 years old at the time of the slayings.

"To have committed two homicides at such a young age shows how violent he was and how violent the gang was," said Special Agent Terry Postma from the FBI's Seattle Division in a written statement. "The younger gang members tried to earn respect from the older guys by these extreme acts of violence."

The FBI describes him as 5-feet-10-inches tall and 140 pounds. He has black hair and brown eyes, with the letter "S" tattooed onto his left shoulder and the letter "E" on his right shoulder.

Authorities advise anyone with information about Mederos to contact the nearest FBI office or local law enforcement agency. Sightings outside the United States should be directed to the nearest U.S. Embassy or Consulate.

The FBI's Seattle Field Office can be reached at 206-622-0460. The U.S. Embassy in Mexico City can be reached at 011-52-55-5080-2000. The FBI also collects tips online at tips.fbi.gov.