1.   As the trains neared the station, one member of each team punctured the bag with the tip of an umbrella while the other cult member kept watch.

2.   Cult members used umbrellas to puncture the bags on crowded Tokyo subways during morning rush-hour and exited quickly.

3.   Five people strategically located in different trains punctured plastic bags full of liquids that produced sarin gas when mixed.

4.   In the Tokyo attack, it was diluted with solvents, and cult members punctured plastic bags containing the liquid.

5.   Seven members of his cult have been convicted in the attack, in which members entered subway trains at rush hour and punctured bags filled with sarin nerve gas.

6.   One of the attackers has confessed they used the umbrellas in puncturing plastic bags containing Sarin on the trains.