Top stories this AM: Lawmakers double down on their fight against Instagram for Kids; 4 friends were found dead in an SUV in a cornfield and authorities have no leads

Good morning and welcome to your weekday morning roundup of the top stories you need to know.

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What's going on today:

• Lawmakers are doubling down on their fight against Instagram for Kids. Republican and Democratic lawmakers are calling on Facebook to stop making Instagram for Kids after a WSJ investigation showed the company knew from internal research that the app is harmful to teen girls. It's the latest in a steady stream of opposition the app has been facing since it was announced earlier this year.
• Authorities say Gabby Petito's fiancé is officially a person of interest in the case. Gabby Petito, a 22-year-old YouTuber, was reported missing by her family on Saturday when her fiancé, Brian Laundrie, returned home from a months-long trip without her. Police said Laundrie is now officially a person of interest in the case.
• Four friends were found dead in an SUV in a cornfield. A farmer found the bodies. Preliminary results from the autopsies showed the victims died of gunshot wounds, the local sheriff said. When asked about a possible motive for the quadruple homicide, the sheriff said that was a "mystery."
• A scientist in Australia named a fly after RuPaul and RuPaul had the perfect response. "As a gay scientist, it took me a long time to feel comfortable in my own skin in a very traditional field of science, in entomology," the scientist, Dr. Bryan Lessard, said. Lessard has named 50 insect species so far, including one that he named as a tribute to Beyonce.

That's all for now - see you tomorrow.