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GRAPEVINE (CBSDFW.COM) – The Grand Jury today is hearing evidence in the case of an immigrant shot by a police officer.

In February, Grapevine officer Robert Clark, 33, shot and killed Ruben Garcia Villalpando, 31, an unarmed illegal immigrant from Mexico. Villalpando’s family is demanding that police release the dash and body cam video; Grapevine PD and the Tarrant County District Attorney’s office refuse to say whether or not the footage could impact the investigation.

Clark was on paid administrative leave.

New footage obtained by the CBS 11 I-Team paints Villalpando in a different light. Garcia was arrested in December 2014 for drunk driving. In the video, he admits to a Lewisville police officer that he drank several beers that night.

The I-Team also looked into Officer Robert Clark’s work history, which includes a job at DFW airport that lasted less than a year. His file says he failed several training courses and was on the verge of being fired for not telling his bosses he was working a side job. Clark resigned before that could happen.

Villalpando was shot and killed on February 20, when a police chase in Grapevine ended in Euless. Police in Euless are handling the investigation because the incident ended along Highway 121 in their city.

An investigation shows that Ruben Garcia Villalpando lead the officer on a chase; autopsy records show Villalpando was legally intoxicated at the time of death.

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