I dont see in the story where one was released... at least I hiope he wasn't -this is pretty much the textbook definition of flight risk.
"Michael Gilhooly, spokesman for the ICE Law Enforcement Support Center at Williston, Vt., said the agency has placed federal immigration detainers on the suspects, meaning that if they were released from the state's custody, they would be transferred into federal custody."
From the article:
"Both suspects remain lodged in the Northern Regional Jail, according to an official with U.S. Immigration and Customs Enforcement and city police; however, a jail official early Monday did not have Ramos on the register of inmates and it was reported that the suspect had been released."
Certainly is interesting. As you said he's an obvious flight risk.