A judge on Thursday officially unsealed the transcript of the anguished 911 emergency call that Marilyn Lemak placed to authorities, telling them she had killed her three children and tried to take her own life but failed.

"My three kids are dead, and I . . . I wanted to be dead too but it didn't work," Lemak told a police dispatcher.

The emergency call will likely figure prominently in the prosecution's murder case against Lemak, which could begin early next year.

Lemak is accused of drugging and then suffocating the children, Nicholas, 7, Emily, 6, and Thomas, 3, on March 4 in the family's Naperville home. She was suffering from depression at the time, according to testimony during pretrial hearings, and was distraught over a then-pending divorce from her husband, David Lemak.

Lemak's defense lawyer plans on waging an insanity defense.

On March 5, Lemak, apparently dazed from an unsuccessful suicide attempt, called for help. At the time, her daughter was dead in Lemak's bed, and her sons were dead in their beds.

Lemak was lying on the floor, clutching a cell phone.

Her call began routinely enough, with a dispatcher answering, "911 where's your emergency?"

"Hi, I'm in Naperville at 28 S. Loomis," Lemak said.

"What's the problem?" asked the dispatcher, who then heard Lemak's shocking admission that she had killed her children and attempted suicide.

Dispatcher: "Okay, what happened, can you tell me? What's your name?"

"Lynn," Lemak said. "Can you send someone?"

Dispatcher: "Yea I'm going to. Can you tell me how?"

"I did it," Lemak said.

Lemak was crying, at times uncontrollably, as she talked with the dispatcher while waiting for help to arrive, according to a recording of the call that was played in court during a pretrial hearing two months ago. She begged repeatedly for someone to come help her.

And although she sounded fairly lucid through her tears, she sometimes digressed onto seemingly trivial matters. At one point, she asked the dispatcher to make sure authorities did not let the cat out of her house when they arrived.

"Please send someone, and they'll have to break the door open I can't get down there. I'm so dizzy," Lemak said.

Dispatcher: "Okay. You're on a cell phone. What's your number?"

"Um, I don't even know it," Lemak said.