A man arrested on felony weapons charges in San Juan where ritualistic bones and blood were found faces a detention hearing next week.
Ruben Ambrosio Fonseca Jr. had his initial appearance Thursday in federal court.
A spokeswoman for the U.S. attorney's office, Angela Dodge, on Friday told The Associated Press that Fonseca is charged with being a felon in possession of firearms and ammunition.
Bond was denied for Fonseca, who was arrested Wednesday and returns to court Nov. 4.
Police Chief Juan Gonzalez says a former officer, whose badge was stolen years ago and found at the scene, has been located alive and well. Police believe bones at the residence were from a business that legally sells skeletal remains.