Disappearance of William Tyrrell

Hundreds of police, members of State Emergency Services, Rural Fire Service and members of the community searched day and night for Tyrrell. Specialist police, including the sex crimes squad from Strike Force were immediately formed. Motorcycles and helicopters were brought in to search. Two hundred volunteers searched overnight, hundreds of people combed rugged terrain around the home and police divers searched waterways and dams. The police searched every house in the estate that surrounds Benaroon Drive several times. The police detection dogs were brought in and they managed to detect Tyrrell's scent, but only within the boundaries of the backyard.[11] "Strike Force Rosann" was established with specially trained investigators from the State Crime Command who are experienced in the unexplained disappearance of young children. They supported the police, other emergency services workers and members of the public involved in the search. After five days, police said they were unable to come up with any leads.[12]

An artist's impression of two cars seen near the Tyrrell home on the morning Tyrrell disappeared

The police later began investigations into finding the drivers of two cars that were seen parked on the dead end road on the morning Tyrrell disappeared. The cars, described as a white station wagon and an older-style grey sedan, were parked between two driveways of the acre lot of land. They were seen with their driver's side windows down and were unknown in the neighbourhood where locals are friends.[1] These cars were noticed by Tyrrell's mother and they have not been seen again since the time he disappeared. The police regard these particular vehicles with suspicion, as there seemed to be no logical reason why they would be parked on the street before William's disappearance.[13]

Reportedly, at 9:00 am, a green or grey sedan car drove past the Tyrrell home while Tyrrell and his sister were riding bikes in the driveway. The car drove into the no through road, did a U turn in the neighbour's driveway and drove out of the street. Secondly, another 4WD was sighted driving out of Benaroon Drive at about 10:30 am, about the time he disappeared. The same vehicle was later seen speeding down another Kendall street. The police said that they have known about these cars since the investigation started. However, as part of investigative strategy, the information about these vehicles was not released to the public until 12 months after Tyrrell disappeared.[10]

The police cleared Tyrrell's family of any involvement in the disappearance and earlier believed the boy was abducted by an opportunistic stranger who may have a connection with a paedophile ring. The police also believed that the boy could be alive in the hands of a group of people suspected of paedophile activity, but it is no longer believed the kidnapper is a member of a paedophile ring.[14][15] The police have interviewed dozens of people including a number of paedophiles. A Current Affair reported that about 20 registered sex offenders were living in the surrounding area of Kendall where Tyrrell went missing.[16]

Two persons of interest in the case, both convicted child sex offenders, may have met up on the day Tyrrell vanished. The family of one paedophile, who had 90 convictions against his name including aggravated indecent assault of a minor, said he was going to visit another child sex offender on that day and returned home drunk that afternoon. But he told police he spent that day in the bush collecting scrap metal. It was reported that both men lived in the Kendall area and had been driving vehicles that matched the description of the grey sedan and white station wagon that had been seen near the Tyrrell house around the time he disappeared. They also had been members of an organisation called GAPA (Grandparents As Parents Again) and were friends.[17] The pair have both been questioned by the police and they categorically denied being friends, or having any involvement in the disappearance.[18]

Another man who repaired a washing machine at Tyrrell's foster home is facing unrelated historical child sex charges in Victoria and was due to appear in court on 4 July 2016. The police had charged the man with multiple child sexual offences, including various counts of indecent assault and sexual intercourse with children between 1983 and 1985 in Victoria. The man posted an online video in September 2015 denying any involvement in the Tyrrell disappearance and that he had been to the Tyrrell home on 9 and 18 September but not to that street on 12 September, the day Tyrrell disappeared.[19][20][21]

More than 1,000 suspected sightings were reported to the investigation team in the two years after Tyrrell disappeared.[22] It includes a photo taken of a man, and a young boy from Queensland, who looked strikingly similar to Tyrrell. However, 24 hours later, the police received another call to confirm that the boy was not him. In early 2015, two passengers and a member of the New Zealand-bound flight crew thought they saw Tyrrell on their aeroplane. The police met the aircraft at the airport and soon discovered it was not him.[23] Another photo came across to the police showing a young boy and a woman in a McDonald's restaurant in Central Queensland. The boy looked similar to Tyrrell, and the woman who was with the boy looked like his grandmother. The police later confirmed that the mother and boy were not them.[24]

On 16 September 2014, Strike Force Rosann was established to investigate Tyrrell's disappearance.[25] It consists of 14 detectives and analysts working full-time to solve the case. The team will also sift through hundreds of pieces of information pouring in from the public. The ramped-up investigation comes after a personal plea from Tyrrell's parents to members of State Parliament, Deputy Premier and Minister for Justice, at a private event in late 2015. The family spokesperson said that "They just want to reinforce that police believe he could still be alive and they're just asking members of the public not to give up on him."[26] The investigation is now the state's largest, involving dozens of analysts, investigators and two strike forces, Rosann, run by the Homicide Squad, and Rosann Two, which provides assistance from the Armed Holdup, Sex Crimes and Fraud Squads.[27]

On 12 September 2016, the second anniversary of Tyrrell's disappearance, the NSW government announced a $1 million reward for information on his whereabouts. The police say that the reward will usually be paid out as conditional on the arrest and conviction of the offender, but the recovery of Tyrrell had been added as a condition on this reward. It is the largest ever reward offered to find a missing person in NSW's history and double the amount of the state's previously highest standing reward of $500,000, attached to the 1999 case of murdered teenager Michelle Bright.[28]

The case has led to a record number of over 2,800 calls to NSW Crime Stoppers alone since Tyrrell disappeared.[29] The police have interviewed more than 1,000 people in connection with the case. There have been 11,000 documents created by the police.[1][30][31] The search has gone global as far as Europe and the US. Crime Stoppers websites in up to 26 countries have been asked by the Australian Federal Police to post an appeal for information about the case.[32] The police have identified 690 persons of interest to their inquiry and have called in other specialist squads within the State Crime Command to investigate many such persons as low-priority targets so that the rest are being questioned by "Strike Force Rosann". The Australian reported that it is possible detectives have already interviewed the person or persons involved.[33]

On 12 June 2018, police announced that they will undertake a "large-scale forensic search" in bushland around Kendall, which will last for three to four weeks and be run by search experts from the Public Order and Riot Squad.[34][35]