Man linked to killings could be in U.S. illegally

LAS VEGAS — A man suspected of being in the U.S. illegally shot and killed four people in Nevada over the past few weeks, including an elderly Reno couple, authorities said, and the slayings added fuel to the immigration debate.

Wilbur MartinezGuzman, 20, from El Salvador, has been jailed in Carson City since Saturday on possession of stolen property, burglary and immigration charges. Authorities said they expect to file murder charges against him in the shooting deaths of the couple and two women in the nearby town of Gardnerville.