The handwritten note, which was released on Wednesday by the Seattle Police Department, was part of evidence collected in the investigation into Cobain’s death, which was ruled a suicide.

“Do you Kurt Cobain take Courtney Michelle Love to be your lawful shredded wife...” reads a portion of the undated note written on stationery from the Phoenix hotel in San Francisco. Police did not indicate whether the handwriting was Cobain’s.

Love’s publicist could not immediately be reached for comment. CBS News first reported the existence of the note, which it obtained through a public information request for evidence collected about Cobain’s suicide.

Cobain and Love, the singer of the on-again, off-again rock group Hole, had a child together and their tempestuous relationship was marked by drug use.

Cobain, who rose to fame in 1991 as the frontman of the rock band Nirvana and popularised the grunge rock movement, was 27 years old when he shot himself on April 5, 1994, at his Seattle home. His body was discovered three days later. The case was reviewed earlier this year when rolls of undeveloped film were discovered as Seattle police were preparing for media attention in the run-up to the 20th anniversary of Cobain’s death.