The number of children who overheated and died inside cars increased across the country last year. Texas had the highest number of cases. Now a boy from McKinney has invented what he hopes is a life-saving tool that every parent could use. New at 10. Our Colin County reporter Meredith Homens has his story. Okay this is basically my deal most of my work after school and after home. Yeah and I'm excited. Football in the front yard is where you'll find 10-year-old bishop Curry. So I found the heaviest blocks I can. Not playing football. F***. Launching them. From his homemade catapult. Trebuchet. It's a trebuchet because catapults are different. I receive a football. It's one of his many creations. I have a like 13. But this tiny 3D model could be his biggest invention yet. Inspired by tragedy. Yeah it was really sad for me. Curry says the idea for his invention came after a baby died inside a hot minivan last summer. And I knew exactly where the house was when we turned on the TV and we watched it. We just go bye bye. It hit close to home for the Curry family because they have a one-year-old of their own. So if you're rushing home from work or you're rushing to the grocery store, I could see how somebody could forget. The device attaches to a car seat and would detect if a baby is left inside. No we just kind of sit on top of there. Then it blows cold air until parents and authorities are alerted. I would be a dream to have lots of inventions that save many lives. Tell me when you're ready. They already have a provisional pattern. It's hitting the target. To keep the ball moving forward. This is very satisfying. On a fifth graders idea that could be a game changer. In McKinney, Meredith Yomans, NBC5. It is so smart. Curry's father is an engineer at Toyota's new Plano headquarters. The company has already taken notice of the fifth graders invention. He recently introduced the device at an auto safety conference in Michigan. Well done. Can't wait to see what he does. I know. I need to follow that story.