Ten suspects have been arrested and four adults have been identified in connection with the gang-related murder of a 15-year-old, Fairfax County police said.

Fairfax County police said four adults and six juveniles are believed to be in involved in the murder of 15-year-old Damaris A. Reyes Rivas.

The following four adults suspects have been identified:

  • Cindy Blanco Hernandez, 18, 11900 block of Winterthur Lane, Reston
  • Wilmer A. Sanchez-Serrano, 21, of no fixed address
  • Aldair J. Miranda Carcamo, 18, 7000 block of Skyles Way, Springfield
  • Jose Castillo Rivas, 18, 5800 block of Brunswick Street, Springfield

Six teenagers have also been charged with abduction and gang participation. They are:

  • 15-year-old girl
  • 16-year-old girl
  • 16-year-old boy
  • Two 17-year-old boys
  • 17-year-old girl

Fairfax County Police say they have video evidence, but they're not saying if they actually have video of the murder, which they suspect was committed by gang members.

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The investigation shows that the victim was held against her will, taken to Lake Accotink Park, assaulted and then killed in the 7100 block of Wimsatt Road. Police believe this happened on or around January 8. Police said not everybody who is in custody is directly affiliated with the murder.

Rivas' body was found on February 11. As of Wednesday afternoon, police arrested nine suspects. They have been charged with abduction and gang participation. Additional charges are pending.

On Tuesday, police thought two more girls were in danger. On Wednesday they think one of those girls, who they picked up in Alexandria was involved.

On Wednesday morning police said a missing 17-year-old teenager who returned home safely on Tuesday had been taken into custody in connection with the incident. Police did not say how Venus Lorena Romero Iraheta was affiliated in the case.

There was no answer on Wednesday at the Alexandria apartment where Venus fled a month ago.

RELATED: Missing Va. teen returns home, killer in another case still at large

Venus told WUSA9's Stephanie Ramirez on her return last night that she'd been afraid for her life.

"I was with friends," said Venus. "And the reason I left was because I was afraid about what happened to my ex-boyfriend.

She says her ex-boyfriend was murdered in December. And Fairfax County police were afraid she too might end up dead.

Like her acquaintance, 15-year-old Damaris. Police discovered her badly decomposed body this past weekend, dumped by her killers in Springfield.

Venus' mother said she's overjoyed her daughter's alive, but moments after WUSA9 talked to her, police detained her.

They've charged nearly a dozen people with abduction and gang activity. Police think they may all be involved in the murder of Damaris.

"The incidents are specific. There does not appear to be a public safety threat. We don't think they're going out randomly attacking other people. It looks like they're targeting each other," said Fairfax County Police Officer Tawny Wright.

Police are also trying to determine if a third girl may be involved.

Sixteen-year-old Lizzy Rivera Colindres also turned up safe after being missing for a month. Police say the father of her 5-month-old is also connected to the gang.

RELATED: MISSING: Va. 16-year-old and her 5-month-old baby

Police refuse to name the gang that's involved, but the victim's mother says it's MS-13. She says she fled El Salvador to get away from gangs and now her 15-year-old daughter has allegedly been killed by one.

Anyone with information is asked to contact the Fairfax County police at 703-691-2131 or you can Crime Solvers electronically by visiting http://www.fairfaxcrimesolvers.org or text-a-tip by texting “TIP187” plus your message to CRIMES(274637).