Is there something hanging around the suspect’s neck (e.g., job ID badge), or is it an image on his shirt?
Black guy walking around with overweight lesbian-looking woman. That helps a little.
Stupid white girl. Doesn’t she realize if her boyfriend thought it okay to punch a stranger because of his race, she too will one day be in similar danger?
She’ll find out.
Channeling my inner Patrick Jane (The Mentalist), I’d guess the guy works at a workout place like LA Fitness: buff physique, wearing shorts, and a bag for extra clothes. A guy who would do this is probably not a computer geek.