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Case Description

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Summary based on the NamUs case record (MP8923) and 9 other sources
In the late hours of February 22, 2010, two-year-old Jozlynn Mari Martinez was in her home on Nagold Street in Grand Rapids, Michigan. Her mother, Consuela Martinez, reported hearing her daughter in her bedroom between 11:00 and 11:30 p.m. The following morning, on February 23rd, a devastating discovery was made; Jozlynn was not in her room and was nowhere to be found. Also missing from the home was Consuela's live-in boyfriend, Jeffrey Lynn Malmberg, along with $2,800 in cash from her purse. Initially, Consuela thought Malmberg might have taken Jozlynn to run errands, but as the day progressed with no sign of them, she grew increasingly concerned and eventually filed a police report that evening. Jozlynn was a young girl with sandy, shoulder-length hair, and hazel eyes. She had a few distinguishing marks, including a scab on her chin from a recent injury, a birthmark and a bald spot on the right side of her head, and a faint birthmark on her left leg.

The investigation quickly focused on Jeffrey Malmberg, who was not Jozlynn's biological father. An Amber Alert was issued, and two days later, on February 24th, Malmberg was located and arrested in Lansing, Michigan; however, Jozlynn was not with him. Once in custody, the horrifying truth of what happened to the little girl began to unfold. Malmberg provided investigators with a confession, stating that Jozlynn had died in their home on the night she was last seen. He claimed he had disposed of her body in a nearby trash receptacle. This led to a large-scale search of the Kent County Waste to Energy Facility, where authorities sifted through over 200,000 pounds of trash in a desperate attempt to find her remains, but their efforts were ultimately unsuccessful.

Throughout the investigation and his subsequent trial, Jeffrey Malmberg gave conflicting accounts of Jozlynn's death. In one version, he told Consuela in a jailhouse phone call that Jozlynn had tragically died after falling down the stairs and that he had panicked, leading him to dispose of her body. However, he later admitted to police that he had become frustrated with the two-year-old and had suffocated her by kneeling on her chest until she stopped breathing. At his trial in October 2010, Malmberg claimed Jozlynn's death was accidental, but the jury convicted him of second-degree murder. He was sentenced to a lengthy prison term of up to 90 years. The disappearance of Jozlynn Martinez is a heartbreaking case of a young life cut short. Despite the conviction of the man responsible for her death, Jozlynn's body has never been recovered, leaving her family with a profound and unending sense of loss. The case serves as a somber reminder of the devastating impact of violence against children and the lasting pain it inflicts on their loved ones and the community.
Jozlynn Mari Martinez was a two-year-old girl living in Grand Rapids, Michigan, when she was last known to be alive on February 22, 2010. She lived with her mother, Consuela Martinez, Consuela’s boyfriend, Jeffrey Lynn Malmberg, and her infant half-brother in a home in the 900 block of Nagold Street NW. Jozlynn was a small child, approximately two feet nine inches tall and weighing about 22 pounds, with shoulder-length sandy-colored hair and hazel eyes. She had a birthmark and a small bald spot on the right side of her head, a faint birthmark on her left leg and a recent scab on her chin. The ordinary details of her young life would soon become part of a devastating investigation after her mother awoke the following morning and discovered that both Jozlynn and Malmberg were gone.

Consuela initially told authorities that she had heard Jozlynn in her bedroom between approximately 11:00 and 11:30 on the night of February 22 but had not entered the room to check on her. When she awakened at about 9:00 the next morning, her daughter was missing. Malmberg had also left the house, while his seven-month-old son remained behind. Approximately $2,800 from Consuela’s income-tax refund was reportedly missing from her purse. The circumstances prompted an urgent search for the child and for Malmberg, who quickly became the central figure in the investigation because he had been alone with Jozlynn while her mother was away from the residence.

Police located Malmberg in Kentucky after he fled Michigan. During questioning, he admitted that Jozlynn had died while she was in his care, although his explanations for exactly how it happened changed over time. The account ultimately presented in court described Jozlynn becoming upset and throwing a tantrum while her mother was away. Malmberg pressed his knee onto the little girl’s chest and held her down until she stopped breathing. She died within minutes. Rather than seeking emergency medical assistance or telling Consuela what had happened, he placed Jozlynn’s body inside a trash bag and left it in the garage.

When Consuela returned home that evening with the money from her tax refund, Malmberg allowed her to believe that Jozlynn was asleep in bed. Consuela did not enter the room, and the truth remained hidden through the night. Malmberg later removed Jozlynn’s body from the property and disposed of it in a commercial dumpster. The contents of that dumpster were collected and transported through the regional waste system before investigators knew where to search. Authorities believed the child’s remains may have passed through a trash-processing facility and could have been incinerated or deposited among a vast amount of refuse, leaving search teams with almost no realistic way to recover her.

The absence of Jozlynn’s body did not prevent prosecutors from pursuing a murder case. Investigators used Malmberg’s admissions, the circumstances inside the home and evidence of his efforts to conceal the death and flee the state to establish what had happened. He was charged with second-degree murder, and a jury convicted him in October 2010. The following month, he was sentenced to serve between 30 and 90 years in prison. The Michigan Court of Appeals later upheld the conviction, finding no basis to overturn the jury’s determination that Malmberg was responsible for Jozlynn’s death.

Although the criminal prosecution provided a measure of accountability, it could not return Jozlynn to her family. Her remains were never located, leaving no opportunity for a funeral centered around bringing the child home and laying her to rest. Her official missing-person records have continued to exist because her physical whereabouts remain unknown, even though the courts established that she was killed. A DNA reference sample from her father was developed for comparison purposes, preserving a means of identifying Jozlynn if any remains connected to her are recovered in the future.

Jozlynn’s case is especially heartbreaking because she was only two years old and completely dependent upon the adults around her for protection. She could not flee danger, explain what was happening or seek assistance on her own. Her death began with an adult’s violent response to the behavior of a frightened or upset toddler and was followed by calculated efforts to hide what had been done. Malmberg’s decision to conceal her body created a second and enduring injury for those who loved her, denying them knowledge of her final resting place even after a jury held him responsible for her murder.

In overview, Jozlynn Mari Martinez was last known to be alive in her Grand Rapids home on February 22, 2010, while in the care of Jeffrey Malmberg. Malmberg killed her by restraining her with his knee against her chest, concealed her body, disposed of her in a dumpster and fled Michigan with money taken from her mother. He was convicted of second-degree murder and sentenced to 30 to 90 years in prison, but Jozlynn’s remains have never been recovered. The court case answered who was responsible, yet the search for the little girl herself remains unfinished, leaving her family with a conviction but without the comfort of being able to bring Jozlynn home.

Last Seen: Feb 22, 2010