The five most popular stories on CNN.com during the last 24 hours, according to Newspulse.

The Police release serial killer's photos: Hoping to solve numerous cold cases, authorities on Thursday released more than a hundred photos of unidentified women and children found in a storage unit that belonged to a serial killer who appeared on "The Dating Game."

Serial killer had photo stash: Police find hundreds of pictures thought taken by convicted serial killer Rodney Alcala.

Teacher admits to teen sex? Police in California say a 33-year-old teacher turned herself in, and admitted she had sex with a 14-year-old student.

Chaz Bono’s gender journey: Chaz Bono tells CNN's Anderson Cooper about his gender transition and emotional journey.

What killed Lehman: Failings by Lehman Brothers executives and its auditor led to the bank collapse that unleashed the worst of the financial crisis, according to a report by a court-appointed investigator.