Nicky Verstappen

Joseph Theresia Johannes "Jos" B. (born 29 October 1962) stood trial for the killing of Verstappen in 2020.

The case has also been linked to German serial killer Martin Ney, who killed three boys between 1992 and 2001.

On the morning of 10 August 1998, 11-year-old Nicky Verstappen disappeared from a summer camp he was attending in Brunssum, Limburg.

His body was found on the evening of 11 August, 1.2 km away in Landgraaf, and a murder investigation was subsequently launched.

Despite extensive investigation, the case remained unsolved for over twenty years.

On Saturday 8 August 1998, Verstappen and 36 other children took a bus from Heibloem to Brunssum to take part in a children's summer camp being held on the De Heikop campgrounds on the Brunssummerheide.

Verstappen was last seen alive around 5:30 a.m. on 10 August by a tentmate; later that morning, he was no longer in his sleeping bag, and only his shoes were still in the tent.

On 11 August, police and volunteers, including Verstappen's parents, conducted a search for the boy; around 9 p.m., his body was found in a pine grove on the Schinvelderweg in Landgraaf, 1.2 km from the camp.

He was found barefoot and without a shirt, but wearing his pajama bottoms and underwear; interestingly, the pajama bottoms were inside-out and backwards, indicating they had likely been hastily put back on at some point.

Additionally, upon Verstappen's discovery, the soles of his feet were clean and showed no evidence of having walked barefoot through the forest or on bare ground, leading to speculation that he was abducted and carried.

At the time of Verstappen's discovery, local medical examiners had apparently been vacationing and were not immediately available, thus delaying a post-mortem examination for several days.

The body showed signs of possible sexual abuse, and a possible head injury was considered, but the examination could not determine an exact cause of death; an initial examination for foreign DNA yielded nothing.

A tissue (containing trace amounts of semen) and a cigarette butt were found near where the body was discovered; from this DNA, a complete profile was compiled.

Joos Barten, the founder of the camp Verstappen disappeared from, was extensively questioned by police in the days following.

A former headmaster of the local primary school in Heibloem, Barten had had convictions for child sexual abuse and admitted to being near the tent Verstappen slept in at 6 a.m. on 10 August.

During the search for Verstappen, he pointed several times in the direction where the body was eventually discovered.

A 15-year-old girl who had attended the teenagers' camp on De Heikop a few days earlier suspected that she had been sexually abused by Barten in her sleep.

None of the camp staff were officially held as suspects.

Following a lack of leads, the investigation team was dissolved in November 1998, with a new team of investigators taking over the case between November 2000 and July 2001.

Between 2001 and 2007, a sex offender from Kerkrade was in and out of police custody while a number of witnesses claimed to have seen him in and around the camp around 10 August 1998; the sex offender died in August 2007.

A reward of 25,000 guilders was offered by the Openbaar Ministerie in Maastricht for information on the identity of the perpetrator; this offer was doubled in 1999 with money raised by crime reporter Peter R. de Vries, who became a spokesperson for Verstappen's family.

Between December 1999 and January 2000, 35 men took part in a DNA test, but none of the samples matched those found at the crime scene.

In November of that year, the remains of Joos Barten, the camp founder, who died in 2003, were exhumed for a DNA test.

His DNA also did not match that found on Verstappen's body.

Seven or eight letters written by an anonymous author suggesting they had killed Verstappen were found on a monument for the boy on the Brunssummerheide between 2005 and July 2006.

In January 2007, a 36-year-old man from Landgraaf was arrested on suspicion of having written the letters.

He was released two weeks later, before being re-arrested in December for vandalising the monument.

One month later, he was sentenced to three months' imprisonment for the vandalism.

In 2010, with foreign DNA having been found on Verstappen's body, police took DNA samples from 80 men, but still did not find a matching sample.

The monument was vandalised again in April 2008, August 2013 and April 2019.

He was arrested on 26 August 2018 in Spain after DNA from his belongings and relatives matched samples taken from Verstappen's clothing, following the largest DNA-harvesting operation in Dutch history.

In January 2018, it was announced that 21,500 men in the Limburg province would be asked to give samples of their DNA in an attempt to trace Verstappen's killer.

The DNA-screening program took place between February and June, with a total of over 15,000 samples collected—the largest number in Dutch history, almost twice the number of samples collected in the program that successfully traced the man who was convicted of Marianne Vaatstra's murder.

On 22 August 2018, it was announced that DNA samples from the belongings and relatives of a 55-year-old man originally from Simpelveld, Joseph Theresia Johannes "Jos" B., matched DNA found on Verstappen's clothing.

B., who had been missing from his Vosges home since April of that year, had not responded to requests for a sample of his DNA and his immediate family also refused to cooperate in the DNA-screening program.

A police team managed to retrieve a sample of B.'s DNA from his personal items after he was reported missing.

B. had a history of sexually abusing children and was known to have been near the scene of the crime around the time it took place, though he was believed at the time to just be a passer-by.

On 20 November 2020, B. was acquitted of manslaughter, but found guilty of the kidnapping and sexual abuse that led to Verstappen's death, as well as of possession of child pornography.

He was sentenced to twelve-and-a-half years' imprisonment.

On 28 January 2022, an appeal court convicted B. on a charge of manslaughter and sentenced him to 16 years.