A Mexican foreign national who had been living illegally in the United States was released from a Denver county jail and, weeks later, allegedly committed a murder.
Immigration and Custom Enforcement (ICE) officials had requested he be held in police custody, with the goal of having him eventually deported.
Ever Valles, 19, reportedly murdered Timothy Cruz, 32, at a railway station in the early morning hours of Feb. 7 after robbing him, the Daily Mail reports.
The Denver Sheriff's Department released him in late December after Valles posted $5,000 bond for theft charges.
ICE authorities had categorized Valles as an "immigration priority" for being linked to gang activities and asked jail officials to notify them of his release so that they he could be taken under federal custody.
On Dec. 20, the jail only let 30 minutes go by between sending ICE a faxed warning of the Mexican national's release and his being set free.
According to The Denver Post, ICE officials failed to see the warning in time to arrange for alternative custody.
Upset ICE authorities claimed the Denver jail did not honor their commitment to warn them legitimately of Valles' release.
"The detainer wasn't honored and he was released by the jail ... without prior notification. Values is a known gang member whose gang history is documented in the Colorado gang database," they said.
The Denver Sheriff's Department defended its decision to set him free in spite of the alleged criminal activities that transpired afterward.
"Denver has never and will never condone dangerous or violent individuals being on our streets, immigrants or not, however, detaining anyone without a criminal warrant is a violation of the Fourth Amendment of the U.S. Constitution," the Department stated in a release.
The Western city calls itself a "sanctuary city," a city that does not round up illegal immigrants for deportation. President Donald Trump had threatened to cut off federal funding to cities and states who disobeyed federal orders to detain and deport illegal immigrants.
"If being a sanctuary city means that we value taking care of one another, and welcoming refugees and immigrants, then I welcome the title," said city mayor Michael Hancock.
"If being a sanctuary city means families and young 'Dreamers' live with hope and not fear, then Washington can label us whatever they want."
The term "Dreamers" refers to workers who arrived to the United States as undocumented children but were given legal status to work as adults by former President Barack Obama.
Valles currently faces charges of first-degree robbery and murder with U.S. citizen Nathan Valdez, 19, an accused co-complicit partner in the crime.
The gang member was arrested on Feb. 8 when cops received an anonymous tip informing them of his location.