N/S Hernandez questioned in Murder Case (update - charged with murder, released by Pats MERGED)

not a suspect but are getting a warrant to search his house

Could be that they're just including a physical search along with the interview to fully run down the lead based on the fact that the car was rented in Hernandez's name. Doesn't necessarily mean that there's more to it than that (though of course there could be, but can't assume that yet).