An undocumented immigrant was arrested on Saturday for the alleged fatal hit-and-run of a grandmother in Denver.

Annette Conquering Bear, a mother-of-six who was due to celebrate her 52nd birthday December 19, was walking home from the supermarket with her husband when Mexican national Juan Sánchez struck her with a SUV he had borrowed the afternoon of December 17.

The 2007 GMC Sierra was abandoned by Sánchez down the road and traced to a friend, who identified him to police investigators.

Annette Conquering Bear was walking home after a visit to the supermarket December 17 in Denver, Colorado, when an undocumented man from Mexico fatally struck her with a SUV. Conquering Bear was just two days shy of celebrating her 52nd birthday

Juan Sánchez, the suspect in the death of fatal hit-and-run of Annette Conquering Bear, was deported six times to Mexico during the last two decades

U.S. Immigration and Customs Enforcement [ICE] confirmed to DailyMail.com that Sánchez was deported six times during the last two decades. His first two deportations took place in 2002. ICE also deported him three times in 2008 and once again in 2012.

The 42-year-old suspect was also arrested three times for driving under the influence of alcohol in Adams County, Colorado [2000]; Denver [2001]; and Seattle, Washington [2002)].

On Monday, Denver prosecutor Beth McCann formally charged Sánchez with vehicular homicide and leaving the scene of an accident. His bond was set at $500,000.

According to KUSA-TV, Sánchez arrested on suspicion of a DUI on December 13 after he drove into a Black Hawk, Colorado, casino's parking lot through the wrong ramp.

He spent several hours detained by the Gilpin County Sheriff’s deputies before he was released.

It is unknown if the Black Hawk police had done a criminal background check on Sánchez after his blood alcohol level registered 0/183, twice the legal amount permitted under Colorado law.

Funeral services for Conquering Bear, a grandmother-of-five, were held Monday in her hometown of Pine Ridge, South Dakota.