Guillermo Diaz, 38

Guillermo Diaz, a 38-year-old Latino, was found dead Monday, Dec. 31, in the 9400 block of John Street in Santa Fe Springs, according to the Whittier Police Department.

[Editor's note: An earlier version of this post, based on information from the coroner's office, described the victim as an unidentified person.]

Prosecutors allege Juan Manuel Ramirez , a 35-year-old Latino, fatally shot Diaz Dec. 23 and then hid the body in concrete inside a Santa Fe Springs business. The body was discovered inside the heating and air conditioning store on Dec. 31 after Whittier police, who patrol Santa Fe Springs, received a tip about a possible killing.

Ramirez, also known as Juan Alberto Galviz, was charged with murder, along with a special allegation that he fired a shotgun, the Los Angeles County district attorney's office said.

Detectives told The Times a preliminary investigation indicated the crime had resulted from "a feud" between the victim and Ramirez. Officials did not reveal more information or the nature of the relationship between the two men.

If convicted, Galviz could receive a sentence of up to life in prison.

Anyone with more information about the killing is asked to call Crime Stoppers at (800) 222-8477.

--Kate Mather and Richard Winton