31. At 6 p . m ., officers approached the house and threw in tear gas cannisters from two sides. 32. Beck died in a blaze authorities believe was sparked by a tear gas cannister lobbed into the home by deputies. 33. The pock-pock of sniper fire mixed with the loud thud of tear-gas cannisters and concussion grenades. 34. A police officer found the cannister on the floor near a security checkpoint after the area had been cordoned off. 35. Meanwhile, most of Genesis'" science cannister " is still in a Utah cleanroom, according to NASA. 36. The explosion was believed to have been caused by mishandling of a gas cannister , the Interfax news agency reported. 37. It has an exchangeable charcoal filter cannister and a little battery-operated gizmo with a red / green LED. 38. Security staff said the man was detained when the cannister , concealed in his clothes, set off a metal detector. 39. It wasn't clear whether it was caused by a bomb or an accident such as a leaking gas cannister . 40. According to ANSA, tear gas landed in the seats after Lazio supporters retrieved and tossed a cannister police had launched.
