Toxicology tests are being done on the bodies of three pit bulls shot after they mauled two children and four adults to determine if the dogs ingested marijuana found inside their owner's home, authorities said Tuesday. The dogs' owner, Scott Sword, 41, of the 6600 block of Hawthorne Drive near Cary, has been charged with felony possession of marijuana and misdemeanor production of marijuana plants, said McHenry County Sheriff Keith Nygren. On Nov. 5 police handling the dog attack found five harvested marijuana plants growing in Sword's back-yard garden and more than 30 grams of marijuana in his home,Nygren said....