A year later, still no answers about missing wife

It's been a year of hope and hype, despair and denials in the search for missing Bolingbrook mother Stacy Peterson.

Today is the anniversary of Peterson's disappearance.

And it will be marked much the same way it began: Her family members will hold a candlelight vigil and her husband is in New York to again tell a national TV audience that he had nothing to do with her disappearance.

Peterson appeared on the "Today" show this morning. And he says he's always been trying to get his story out.

As for Stacy Peterson's loved ones, family friend Pamela Bosco says some have decided taking part in tonight's vigil would be too difficult, particularly for Stacy Peterson's sister, Cassandra Cales.

Timeline in Stacy Peterson disappearance

The disappearance of Stacy Peterson has triggered two investigations -- one into the fate of Peterson and the other into the death of the ex-wife of her husband, Drew Peterson. A brief synopsis of what has happened since Stacy Peterson vanished:

2007

-- Oct. 29: Stacy Peterson reported missing, a day after she fails to show up at a relative's home.

-- Nov. 2: Police search the home of Drew and Stacy Peterson. Police divers search a nearby pond and investigators use cadaver dogs.

-- Nov. 6: Investigators execute another search warrant at the Peterson home.

-- Nov. 9: Illinois State Police declare Drew Peterson a suspect in his wife's disappearance; they also say they've formally launched an investigation into the 2004 drowning death of Peterson's previous wife, Kathleen Savio, saying it does not appear to be an accident as originally determined.

-- Nov. 9: Judge signs order to exhume Savio's body.

-- Nov. 12: Drew Peterson resigns from the Bolingbrook Police Department, where he's been an officer for 29 years.

-- Nov. 13: Savio's body is exhumed and an autopsy is conducted.

-- Nov. 14: Drew Peterson appears on NBC's "Today" show where he proclaims his innocence and reiterates his contention that Stacy Peterson left him for another man and is alive.

-- Nov. 16: Forensic pathologist Dr. Michael Baden conducts autopsy on Savio's remains at the request of her family; says it looks like she was murdered.

2008

-- Jan. 24: Will County state's attorney's office acknowledges publicly for the first time that a grand jury has been convened to investigate Stacy Peterson's disappearance and Savio's death.

-- Feb. 21: Will County state's attorney announces that Savio's death officially declared a homicide.

-- March 17: A judge orders that cars and computers seized from Drew Peterson be returned on the condition Peterson agree to not challenge the validity of more than 200 digital photographs of his cars and other property.

-- May 21: Peterson turns himself in to police on a weapons charge unrelated to the disappearance of his wife. He was released from custody after an adult son posts a 10 percent bond.

-- June 4: Peterson's adult son picks up eight guns that authorities seized from Peterson's home as part of the investigation into Stacy Peterson's disappearance.

-- June 26: Drew Peterson's 15-year-old son joins the growing number of family and friends of Drew Peterson to testify before a Will County grand jury.

-- July 23: Published report says two former friends of Drew Peterson wore a wire and secretly taped conversations with Peterson.

-- Aug. 28: A Will County judge sets a Dec. 8 trial date in the gun charges case against Peterson.