Eriq La Salle tweets 'we tragically lost a member of our ER family' about ...

They were co-stars on ER from 1994 through 1997.

And Eriq La Salle sent out a tweet on Friday after learning of Vanessa Marquez's death.

The 56-year-old actor started his post by saying, 'We tragically lost a member of our ER family.'

Condolences: Eriq La Salle sent out a tweet on Friday after learning of Vanessa Marquez's death

Condolences: Eriq La Salle sent out a tweet on Friday after learning of Vanessa Marquez's death

'Vanessa Marquez played a nurse when the show first aired. Sending out condolences to her family and friends. 

'May she rest in eternal peace,' added the former ER Star.

While Marquez left the show in 1997, Eriq remained all the way until the show came to an end in 2009.

Police in California who were summoned to perform a welfare check on Marquez on Thursday shot and killed her after they say she threatened them with a realistic-looking BB gun.

The incident began unfolding just before noon when South Pasadena police officers responded to a home in the 1100 block of Fremont Avenue after getting a call about a 49-year-old woman suffering from seizures.

Will be missed: 'Vanessa Marquez played a nurse when the show first aired. Sending out condolences to her family and friends. 'May she rest in eternal peace,' added the former ER Star

Will be missed: 'Vanessa Marquez played a nurse when the show first aired. Sending out condolences to her family and friends. 'May she rest in eternal peace,' added the former ER Star

Sad day: The 56-year-old actor started his post by saying, ''we tragically lost a member of our ER family'

Sad day: The 56-year-old actor started his post by saying, ''we tragically lost a member of our ER family'

Sheriff’s Homicide Lt Joe Mendoza said the woman, later identified by sources and commenters on Twitter as

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