100+ Kills Mass Murderers

Timothy McVeigh killed 168 people, not 171.

Kim Dae-Han is an unusual situation, he only wanted to become An Hero, but the fire he started killed 192 others. The ironic thing is, almost everyone who wanted to kill that amout of people have failed miserably. Eric & Dylan, i'm talking about you.

I find it hard to belive that a lone individual would ever kill 100+ people with guns only, it just dosen't sound possible, although Stephen Paddock could have done if he kept shooting for longer.

Gameel al-Batouti (217, 0)
Mohammed Atta (~1600, ?)
Marwan al-Shehhi (~900, ?)
Hani Hanjour (184, 106)

Air India Flight 182
Russian apartment bombings
Walisongo school massacre
Bali
Madrid
Beslan
Mumbai
Peshawar school massacre
Metrojet Flight 9268
Paris

Lockerbie doesn't count in my opinion because it was done by an official government.
EDIT: The same could potentially be said of the Russian apartment bombings, but that's speculation with some evidence, not fact.

Adílson Marcelino Alves, Niterói circus fire (500 deaths)

Robert Dale Segee, Hartford circus fire (167-169 deaths)

Lai Sanyang, Ship 160 explosion (134 deaths)

Jiang Xiaofeng, 1990 Guangzhou Baiyun airport collisions (127 deaths)

Unknown, Molo fire (112-113 deaths)

Zhang Pilin, China Northern Airlines Flight 6136 (111 deaths)

Not kills but notable injury count:

Lin Yuerong, Fuzhou Xindian Central Elementary School poisoning (186-188 poisoned)

João Candido da Silva, Afogados da Ingazeira poisoning (100+ poisoned)