Two separate teen stabbings rule the headlines this morning. A 16-year-old boy was stabbed to death in front of a crowd of students after a fight with another student, allegedly over "a girl and 10 bucks." The victim, Mike "Biggie" McDonald, had had an ongoing rivalry with the 18-year-old suspect, who was arrested within minutes of the incident yesterday. Both were students at Monsignor Paul Dwyer Catholic High School in Oshawa. Hours later, an unrelated teen stabbing occurred in Mississauga near an elementary school, with the 15-year-old victim now fighting for his life.

In Pickering yesterday, several cars of a CN Rail freight train carrying hazardous chemicals ran off the tracks. The derailment happened near Pickering GO station, prompting the evacuation of the entire station (and, of course, a major delay in service), but no leakage was found in the end. This isn't the first time a CN train has derailed, although it's not yet clear why this most recent incident occurred.

New Ontario guidelines to be implemented this summer will have police trying to avoid Tasering pregnant women, children, and the elderly. The guidelines also instruct officers to avoid cyclists or others in moving vehicles, as well as to aim away from the throat and genitals. Medical attention will be given to multiple stuns, loss of consciousness and head injuries as a result of falling, or if any of the guidelines are breached. All of this comes after a two-year review of Tasers and other conducted energy weapons in Ontario sparked by the death of Polish immigrant Robert Dziekanski. Now I wonder what they have to say about deer...

Police are upping their search for the two door-crashing ATM thieves, releasing surveillance video of the late February incident to the public. The video shows the two suspects driving a black pickup truck right through the glass doors of the Metro Toronto Convention Centre and back out again, with about $100,000 inside an ATM machine. You really have to see a ballsy move like that for yourself.

Finally, Toronto will host the MLS Cup this fall at BMO Field. The Nov. 21 date and 8:30 p.m. start time, not to mention the stadium's lakefront location, likely means that fans will have to layer up...and possibly prepare for snow. This month, the stadium's artificial turf will be replaced with natural grass, which should provide considerable help with drainage. Commissioner Don Garber is hopeful, stating, "Up here our fans are going to come out in rain, snow, sleet or sunshine."

Photo: "parabolic" by ronnie.yip, member of the blogTO Flickr pool.