Authorities in Nevada confirmed Tuesday that they served a search warrant this week in connection with the long-unsolved killing of rapper Tupac Shakur, which took place in 1996. Shakur was 25 when he was gunned down in Las Vegas in a murder that remains unsolved to this day.

Nevada does not have a statute of limitations for prosecuting homicide cases.

Department spokesperson Aden OcampoGomez said he could not provide further details on the latest development in the case, citing the open investigation.