Complex sentence: In 2007, the new owner of Reardon's former home discovered a cache of child pornography hidden behind a false wall... this cache contained approximately 50,000 35mm slides and more than 100 videos of child pornography, presumably created by Reardon.
Split into simpler sentences: In 2007, the new owner of Reardon's former home discovered a cache of child pornography hidden behind a false wall. The cache contained approximately 50,000 35mm slides and more than 100 videos of child pornography, presumably created by Reardon.