There was a court appearance Monday afternoon for a suspected serial killer charged with four counts of murder for the killings of three homeless men in Los Angeles and an L.A. County employee in San Dimas. Margaret Carrero was in the courtroom.

(Photo credit:  LOS ANGELES COUNTY SHERIFF'S DEPARTMENT)

<p>There was a court appearance Monday afternoon for a suspected serial killer charged with four counts of murder for the killings of three homeless men in Los Angeles and an L.A. County employee in San Dimas. Margaret Carrero was in the courtroom.</p>
<p>(Photo credit:  LOS ANGELES COUNTY SHERIFF'S DEPARTMENT)</p>

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