Something weird in the air or in the water of Toronto ?

Second stabbing incident of the day.  The first one was down south in the USA. Now, this one is almost at my doorstep.  4 employees of Yonge St./York Mills office stabbed.  1 woman in serious condition.

From CBCNews:
.... Toronto police say a 45-year-old man is in custody following a multiple stabbing at his workplace inside a large office building that left at least four people injured, one in critical condition.
Police said the attack happened just after 9:30 a.m. ET Wednesday on the fifth floor of an office complex at 4110 Yonge St., near York Mills Avenue in the city's north end.

Police received multiple 911 calls of an assailant attacking people with "a sharp instrument."

They say the suspect was subdued by employees until police arrived. Police confirmed the man is an employee of the business where the attack took place. They would not name the business.......