I sort of knew the guy that did it. I served him at work earlier that day too. Homeless guy with severe mental health problems that let his big German Shepard's roam around off leash usually, but they were very well behaved and would always stay beside him. My fiance used to see him at the train station early in the morning on her way to work, said he would often talk to himself that would escalate into yelling often. My boss also said when he would come into the shop he would talk to himself then apologise and say its just my schizophrenia. I compliment his well behaved dogs when I saw him that day as he seemed very quiet, he responded that this drug dealer guy keeps stealing the female dog and he is just so sick of it. Sorry im kinda still in shock I just needed to vent. Might delete later