"We honestly don't know what happened at this point, it's still very much a mystery,'' Gary Davidson, a Volusia County Sheriff's Department spokesman said Sunday.

Miller said that she was asked by investigators over the weekend to provide any new details that might help investigators find the missing pair. She said that they asked her and her husband, John, if anything was missing from the home and about conversations with Joshua the day before he vanished.

"It seemed like I was there for two weeks,'' she told newspaper and television reporters outside the two-story home the couple shares with Bryant and Martin. "They just wanted to ask us the questions over again.''

Miller said that investigators told her everyone has to be treated as a suspect, but she still appeared upset about the questioning.

"It's an insult,'' she said.

Sheriff's officials remained quiet about whether or not the Millers are being investigated.

He acknowledged the family has been questioned but said that was normal procedure in missing persons investigation.

"The family has been very cooperative with our investigators and has done anything we've asked them to do without hesitation,'' Davidson said.

Davidson also said that the sheriffs' department has received an outpouring of support from the Deltona community who've organized searches and distributed flyers seeking information about the missing pair.

"I wish we had something to tell the community,'' Davidson said. "I wish we knew whether or not it was a random act or something else to put everyone's mind at ease, but we simply don't know.''

Last week, the Federal Bureau of Investigations joined in the search, helping sheriffs' deputies track down leads and also lending the assistance of behavioral scientists called profilers, Davidson said.

Martin and Bryant were reported missing shortly after 11 a.m. EDT May 12.

Joanne Miller told investigators that Martin and Bryant were at home at about 7 a.m. when her husband left work and she went to a fund-raiser.

When Miller returned home, Kelley said, she discovered her grandmother and brother missing, but Martin's car still in the driveway.

The presence of the car makes investigators "highly suspicious,'' Davidson said, but they remain baffled by the disappearance.

"We always get a number of missing persons calls but nothing quite this unusual or seemingly inexplicable,'' Davidson said.

"This is about as strange as it gets."

Previous Stories:

• May 18, 2001: Still No Sign Of Missing Boy, Grandmother
• May 15, 2001: Sister Of Missing Boy Makes Plea
• May 15, 2001: FBI Joins Search For Boy, Grandmother