Why Did Gunman Open Fire on Yoga Studio in Florida?

Was the gunman who killed two people inside a Florida yoga studio part of a growing group of angry men called "incels?” Some believe 40-year-old Scott Beierle may have carried out the attack as an act of revenge on women for rejecting his romantic advances. Beierle spewed misogynistic and racist hate in a series of YouTube videos which mainly targeted women. In one of his videos he sympathized with Elliot Rodger, a self-described "incel,” which is short for "involuntarily celibate."