Colleges and universities across Georgia have wrapped up the semester, but one Morehouse College student has more work to do. Last year, Julien Turner took an extra credit biology assignment and turned it into a viral music video about the differences between mitosis and meiosis. The rising junior's video made it all the way to the people who work on "Sesame Street." Now, Julien and his brother are creating an educational music video for the show. Julien spoke with GPB's Leah Fleming about the project.

On Second Thought for Thursday, May 17, 2018.

We also spoke earlier this year with Fran Brill, who was the first female puppeteer for Sesame Street. She's from Savannah, Georgia. We talked with her about her long career on one of the most recognizable streets in America.

The school shooting controversy was re-ignited in February, when 17 people were killed at Marjory Stoneman Douglas High School in Parkland, Florida. In some cases, people behind school shootings are dealing with some form of mental illness. That's the case with Michael Brandon Hill, who carried out a shooting in 2013 at the Ronald E. McNair Discovery Learning Academy in Decatur. Nobody was hurt or killed in that incident. GPB intern Destiny Robinson looked back at that case, and Hill's history of mental illness.

One point in the gun control debate where most people agree is not arming people who are mentally ill. We talked with DeKalb County public defender Annie Deets, who specializes in mental health. She also represented Michael Brandon Hill.

In 2016, Grammy-winning mandolinist Chris Thile was tasked with recreating one of public radio's most popular programs, as the second-ever host of "A Prairie Home Companion." Now in its second season, the show has been recreated once over with a new title: "Live From Here." Thile brings "Live From Here" to Atlanta's Fox Theatre on Saturday, May 19, 2018. He spoke with us ahead of his appearance about finding his own rhythm as a public radio host and creating a show that appeals to audiences young and old. We also talked about Thile's band, Punch Brothers, and why bluegrass doesn't cover what he calls the various "textural aesthetics" that his music encompasses.