Here for example. Its a dutch newspaper, but you can translate it with google browser.
https://nl.metrotime.be/2020/06/17/...-gevonden-bij-duitse-verdachte-maddie-mccann/
Quote from the article:
A documentary by German Spiegel TV now shows that during a search in 2016 bathing suits for little girls were found in Brückner's camper van, The Sun writes. The search was conducted in the context of the investigation into the German missing five-year-old Inga Gehricke, who disappeared in 2015. During the search, six USB sticks with more than 8,000 files of child *advertiser censored* videos and photos were also found. Luguber detail: the USB sticks, together with memory cards, were in a bag under the body of Brückner's dog. Investigations into Inga's disappearance were halted in 2016, but Brückner was convicted of possession of child *advertiser censored*. German police only recently linked several child disappearance cases to those of Maddie McCann.