Drew Peterson maintains innocence to Matt Lauer on 'Today'

Drew Peterson continued today to deny any involvement in the case of his missing fourth wife or in the homicide of his third wife.

In an appearance on NBC's "Today" show in New York, Drew Peterson said he was surprised when a coroner last week deemed the 2004 death of Kathleen Savio a homicide.

"That was kind of shocking," the former Bolingbrook police officer said. "We believed for the last four years that her death was accidental. ... I'm kind of suspicious of it."

The 40-year-old's body was found in her bathtub -- shortly before her divorce to Peterson was finalized.

Members of a coroner's jury said the woman's death was an accidental drowning even though there was no water in the tub when she was found. At the time, investigators theorized that the water must have drained from the tub.

After Peterson's fourth wife, Stacy, vanished this fall, investigators decided to reopen their investigation into Savio's death.

Police view Stacy Peterson's disappearance as a possible homicide. Drew Peterson, 54, has not been charged in either investigation.

Meanwhile Thursday, a member of the original coroner's jury, Jim Pretto, told "Good Morning America" that there wasn't enough evidence presented at the time to back up claims by Savio's family that the woman had been killed.

Savio's sister told a coroner's inquest shortly after her death that Savio feared Drew Peterson. Susan Savio told the six-person coroner's jury that her sister told family members that, "if she would die, it may look like an accident, but it wasn't."

Authorities estimate Savio was dead about a day before her body was discovered.

Peterson's lawyer Joel Brodsky wouldn't say exactly where his client was when Savio would have died -- but acknowledges connections between her death and Stacy Peterson's disappearance may appear suspicious.

"There's certainly suspicion," he said on the "Today" show. "I mean, nobody's going to say it's not suspicious, but suspicious isn't guilt. Suspicion is just it, something to look at."

Peterson and Brodsky said there's still no credible evidence linking Peterson to any misdeed and the two continued to say they believe Stacy Peterson, 23 years old when she disappeared, ran off with another man.

But Peterson said he still expects to be arrested as the investigations continue.

"I am prepared for anything that should come up," he said. "But psychologically and physically, as long as my children are OK, I'm OK."