Guglielmo was born in Aransas Pass, Texas. She was last seen alive at 20 years and 11 months on May 10, 1994 near her home in South Daytona, Florida. Her lower torso was found floating on the Hudson River near Tarrytown in June, 1994 and a week later and twenty miles away, her head and upper torso were found in woods near Bedford, both locations being in Westchester County, New York. Media coverage was eclipsed by the O.J. Simpson trial and the arrest of Timothy McVeigh the following year. Although her husband Mark Guglielmo was arrested for the murder there was no trial due to a plea agreement. Many questions remain unanswered.
Her surname was changed in 1983 following the divorce and remarriage of her birth mother to Julio Bruce Scaramastro in Illinois. The Scaramastro family then moved to Oxnard, California where Kimberly Anne experienced a stormy home relationship. She was subsequently sent to live with her aunt near Jackson, Mississippi.
Her relationship with Mark Guglielmo was broken up by her mother who took her back into her home. Mark Guglielmo returned to live with his parents at Bedford, New York. His parents were on the verge of what would become a permanent divorce. Nevertheless, shortly after his departure for New York, Kimberly Anne requested a plane ticket from his mother and she then flew to New York and moved in with the Guglielmo family.
According to official transcripts of the murder case file, Mark Guglielmo received a phone call around Noon on Tuesday, May 10, 1994 at the hotel. The caller, which according to witnesses appeared to be his wife, told him to come home because she had been in a car accident. Mark Guglielmo was observed to have said to the caller words to the effect that he could not come home, because he was at work. Subsequent enquiries by South Daytona Police revealed that she had not been in a car accident.
At approximately 12:45 p.m., after she made the call to her husband Mark to come home, Kimberly Anne visited their bank which was five minutes from the upstairs apartment. She arrived in her own vehicle and withdrew half of the deposits in their joint bank account. Why she called her husband to come home has never been answered.
According to Kimberly Anne's mother she was on the phone with her daughter when Mark returned home, but there is confusion over both the veracity and time of this event. At 1:20 p.m. Mark Guglielmo arrived at the same bank and withdrew the remainder of the funds from the joint account. At 2:05 p.m. he was seen at a gun shop where he bought a shot gun and two different types of shells.
Around 3 p.m. an off-duty policeman with the city of Daytona Beach who lived in the apartment below the Guglielmos, complained to the apartment management that reddish liquid was seeping from his ceiling and dripping on to his carpet. At approximately 3:30 p.m. a maintenance crew spoke to Mark Guglielmo in his upstairs apartment doorway. He apologized and said that he had just dropped a large bottle of red film developing liquid which he would clean up and that he would pay for any damages.
Shortly before midnight at 11:15 p.m. that same day, Mark Guglielmo checked into a motel just over the Georgia side of its state border with Florida.
On Saturday, May 14, 1994, the mother of Kimberly Anne sent the first of two fax fliers to South Daytona Beach Police Department from her home in Oxnard, California. She reported her daughter as a missing person, and confirmed this in a voice conversation with a police officer. She also told police that she had understood that her daughter was leaving her husband and returning to California, but that she had not arrived. In her fax the mother of Kimberly Anne accused a waitress from the restaurant where her daughter had worked of disappearing with Kimberly Anne, perhaps placing Kimberly Anne's life in danger.
On Monday, May 16, 1994, South Daytona Police received the second of two fax fliers from Kim Scaramastro, mother of Kimberly Anne, in which she accused her daughter of being mentally unstable and a "psychopathic liar", while denying that her husband Mark Guglielmo had harmed her daughter in any way. Later that morning the police visited the apartment manager who told them about the off-duty policeman's report the previous Tuesday concerning the reddish liquid dripping on to his carpet. The police then entered the Guglielmo apartment for the first time. They did not find anyone at home but they did observe that a section of carpet and a section of the bed mattress had been cut out and removed from the single bedroom. In that same general location they also discovered signs of blood splatter and stains.
On Friday, May 20, Mark Guglielmo telephoned South Daytona Beach Police Department to ask if they had found his missing wife.
There were questions about the murder itself and whether Kimberly Anne had been pregnant on May 10, 1994. There were pending sanctions against the prosecutor because he had defied the court and covered up the fact that he had ordered the cremation of the corpse before an independent examination could be made. There were questions about who had called Mark Guglielmo to come home from work and why he was called home. Other questions concerned the strange actions of Kimberly Anne on the day of the murder and the even more bizarre faxed and phoned messages that her mother had made to the police denouncing her daughter in support of Mark Guglielmo. His actions were also very peculiar in that he had not only taken his wife's corpse from Florida to New York, but the police suspected that someone else might have assisted him in its disposal in two halves and at two different locations. There was no explanation for the manner in which the corpse had been disposed. While it was hundreds of miles from the murder scene, it had been left in plain site with various tools. There were no satisfactory answers as to why Mark Guglielmo had bought a shot gun with various types of shells on the day of the murder or why he had driven hundreds of miles to a point near Halifax, Nova Scotia in Canada.
Due to the circumstantial evidence, the unanswered questions and the pending sanctions, the prosecution dropped the first degree murder charge and offered Mark Guglielmo a plea bargain of second degree without the possibility of appeal. Mark Guglielmo accepted on condition that the many unanswered questions would be answered. His attorney noted for the record that he expected that his client would receive a downward departure according to the prison sentence guidelines.
The answers were never provided and his sentence was delayed one week. This allowed for the provisions of a new sentencing guideline to come into effect. On June 15, 1995 Mark Guglielmo received a 40 years prison sentence instead of the 20 years that he had been expecting to receive. His judge was Gayle Graziano who had also been part of the controversial stages of the mass murder charges against Aileen Wuornos. Following the sentencing of Mark Guglielmo his judge was removed from the bench by the Florida Supreme Court due to her own misconduct involving other judicial matters.