NEW YORK (CBSNewYork/AP) — Just over two weeks after saying goodbye to Whitney Houston – and performing a touching tribute to the  local legend  – Jennifer Hudson could face another emotional ordeal.

The Oscar winner, who called Whitney Houston one of her biggest inspirations, is on the witness list for the upcoming trial of a man accused of killing her mother, brother and 7-year-old nephew.

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The Chicago Tribune reports, however, that prosecutors haven’t yet disclosed whether Hudson will actually testify at William Balfour’s trial, which is slated to begin April 9.

Balfour was the estranged husband of Hudson’s sister, Julia. Hudson’s mother and brother were found dead in the family’s home on Chicago’s South Side in 2008. Her nephew’s body was found days later in a vehicle on the city’s West Side.

A court filing by prosecutors last week contains detectives’ reports from interviews with Hudson after the deaths.

According to the filing, Hudson told investigators she’d known Balfour since childhood and had advised her sister against marrying him.

Hudson is responsible for the moving tribute to Whitney Houston at the Grammys.

Hudson emerged at the end of the awards show to sing one of Houston’s signature songs, “I Will Always Love You.”

Dressed in black, with only the accompaniment of a piano, Hudson appeared to fight back tears as she sang the song, ending with the line, “Whitney, we will always love you.”

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