Through his videos, he appeared to identify as an "incel", shorthand for "involuntarily celibate", a misogynistic label used primarily on the internet to describe men who can not convince women to have sex with them.
However, the man speaking in the videos looks like Beierle and biographical details mentioned in the videos match known facts about Beierle, including details about his military service.
Alex Redding, who was in a downstairs bar, said people came in barefoot looking for help after a man who had been acting strangely began shooting during the class, the Tallahassee Democrat reported.
Local media is reporting that six people were injured.
"Shanta Combs told the Democrat she was drinking with friends at Bar on Betton when heard the bartender yell: "'Active shooter, get down, get away from the window!"
Gillum clarified that no act of gun violence is acceptable.
Police have yet to name the shooter, but say they have "tentatively" identified him and are trying to make a connection between him and the people inside the yoga studio.
Binkley and Van Vessem died of their wounds. She was an FSU faculty member.
Officials say 61-year-old Nancy Van Vessem and 21-year-old Maura Binkley have died due to their injuries.
All asylum seeker children to leave Nauru: Brandis
But after more than a year of screening, only 439 have found new homes there. Protesters at the "Kids off, everyone off; close Manus and Nauru".
Scott Paul Beierle then fatally shot himself inside the studio. This is the second deadly attack by an "involuntarily celibate" in 2018. "We're all very saddened and shocked by the events that occurred", said Michael DeLeo, Tallahassee's police chief.
Beierle's LinkedIn page says he attended FSU for a masters degree in public administration and urban planning, and graduated from Binghamton University in NY in 2002. He had been in the military and was a graduate of nearby Florida State University, but was living in Deltona, a town in central Florida east of Orlando.
The crime scene was located in a shopping plaza near Thomasville Road and Bradford Road.
According to FSU's website, Binkley was from Atlanta and studying for a double major in English and German. Multiple people suffering from gunshot wounds were found when the police arrived.
Beierle was also charged with battery in 2012 for grabbing women's buttocks in a university campus dining hall. Court records show those charges were later dropped.
Three people have been shot dead in Florida after a gunman opened fire inside a yoga studio before killing himself.
The two slain Friday were a student and faculty member at Florida State University, according to university officials.
The four other victims are in a critical condition.
Mr DeLeo said authorities are investigating possible motives.
City Commissioner Scott Maddox said in a statement that he had visited the scene of the shooting.