It's no secret that Marcelo Marquez has had his share of run ins with the law.
Prior to Friday's deadly rampage, Marquez -- under a different name -- was arrested several times on drug related charges in Maricopa County dating as far back as 1996.
Now, word of his immigration status has now sparked fierce debate on the country's immigration system.
Immigration officials said before Friday's shootout that killed two sheriff's deputies, Marquez – an undocumented immigrant – was twice deported to Mexico.
His illegal reentry into the U.S. has reignited the immigration debate with one sheriff.
"All the illegals I have in the jail, how they keep coming back for murder and sex crimes, and they come back to jail," Maricopa County Sheriff Joe Arpaio said.