ATLANTA (AP) — A Georgia man has been indicted on murder charges by grand jurors who said he intended to rape a nursing student whose body was found near a running trail on the University of Georgia campus.

It is the first time such a motive has been revealed in the February killing of Laken Hope Riley, which has become a flashpoint in the national debate over immigration reform. Republicans have used the murder case against Jose Ibarra, a Venezuelan citizen, to stoke fears about immigration by claiming that some immigrants would commit violent crimes if they are allowed entry into the U.S.

A Georgia grand jury this week handed down an indictment accusing Ibarra of repeatedly striking Riley in the head with a rock and asphyxiating her, and also pulling up her clothing with the intention of raping her.

The 10-count indictment also accuses Ibarra of hindering Riley’s attempts to call 911; and of tampering with evidence by concealing a jacket and gloves.