Wetterling investigators used hypnosis to prod memories, but some experts fear the process can cause people to remember things that didn't happen. So while it may help investigations, courts have been wary to accept it as evidence.
Early on, investigators circulated a number of police sketches, hoping they would generate better leads in Jacob Wetterling's abduction. But sketches can be tricky and lead potential witnesses down the wrong path.
DNA profiling has grown up since the Wetterling abduction, becoming both more powerful and, sometimes, as much art as science. It played an important role in shaping the case against the man who led authorities to Jacob's remains.
California's San Quentin State Prison north of San Francisco is one of few prisons in the nation to offer a college education to inmates. Here's a look at the Prison University Project behind the prison walls.
When inmates at Indiana Women's Prison got an assignment to write the institution's history, the project dug up unknown details and instilled a love of research in inmates.
Stearns County sheriff's office transcript of 911 call from Merlyn Jerzak, a neighbor of Patty and Jerry Wetterling. His daughter, who had been babysitting at the Wetterling house, called him to come to the Wetterling house when she learned of Jacob Wetterling's abduction from Jacob's brother, Trevor, and their friend, Aaron Larson.
Nearly two months after a juvenile correctional facility in northern Minnesota was closed, county officials found evidence of maltreatment in the actions of Mesabi Academy employees.
Schools facing dilemmas over disparities in discipline policies are turning to an approach known as restorative practices, focusing on how to repair harm done.
In St. Paul, administrators dealt with disparities in discipline by reducing suspensions and expulsions. In the end, the superintendent was fired and few were happy with the result.
In 2008, Denver schools abandoned their zero-tolerance approach to discipline and opted for other ways to deal with school behavior. Suspensions and expulsions are way down and the racial gap in discipline has narrowed.
Police officers have been in schools for years, initially brought in as a means of student protection. But some say they have become too involved in school discipline.
Families and counties are scrambling to place children after Mesabi Academy said it would close its doors June 30. Hennepin and Ramsey counties have sent more complaints about the correctional facility.
A flawed, confused system prevents judges, social services officials and guardians from discovering critical information about the condition of the residential treatment facilities regulated by the Department of Corrections. Mesabi Academy, scheduled to close next month, is a case study. Since opening in 1998, the juvenile correctional facility had been seen as a reliable jobs provider, receiving subsidies from government and tens of millions of dollars in loans from its parent. But attempts to sustain the business may have compromised resident and worker safety.
Minnesota's Department of Corrections tracks reports about the 60-plus juvenile residential treatment centers it licenses. But it does little to disseminate that information. APM Reports obtained the data about what the department calls incidents and complaints for 2009 to March 2016 and sorted it in this searchable table.
The decision to close Mesabi Academy raises short-term questions about where troubled boys will be sent but also longer-range questions about whether the state's system is sufficient.
The parent company of an Iron Range juvenile residential treatment center said it planned to close the facility by the end of next month. The decision came after several counties pulled residents and the state froze new admissions, actions that followed several APM Reports stories about Mesabi Academy.
The Minnesota Department of Corrections said the juvenile corrections facility agreed to suspend new admissions while an investigation proceeds into allegations of maltreatment.
Water has been a matter of national security for Israel since the nation's inception. Drought and growth have pushed the country to use desalination, wastewater recycling and other technology and engineering feats to address the demand. But it's a different picture where Palestinians are involved.