Here are some options for Video Editing:
Adobe Premiere Pro is one of the industry standards. It is available in DoIT computer labs including in the Libraries.
Other DoIT computing sites: https://doit.missouri.edu/services/computing-sites
(Non-students: you will have to check with DoIT about staff licenses. Department and student personal licenses are available for a discounted price through DoIT. See: https://doit.missouri.edu/services/software/software-sales/adobe-software)
iMovie comes free with most Apple computers, so if you have a Mac you probably have access to iMovie.
Microsoft MovieMaker has a free option available with some limited features https://www.microsoft.com/en-us/p/movie-maker-10-free/9mvfq4lmz6c9
HitFilm is a free video editing software you can try: https://fxhome.com/hitfilm-express
You could do some level of editing in Panopto, if you had to – but there are very limited editing options there.