Table:
0
A
B
C
D
E
F
G
1
Perpetrator
Date
Year
Location
Country
Killed
Additional Notes
2
Ou Yangpu
01.01 Jan. 1
1976
Zixing
China
17
Committed suicide
3
Simmons, Ronald Gene , 47
12.22 Dec. 22–28
1987
Russellville , AR
U.S.
16
Sentenced to death and executed
4
Mohammad Zaman, 30
09.25 Sep. 25
2009
Ghola
Afghanistan
15
Committed suicide
5
Unknown
11.23 Nov. 23
1936
Maropally
India
14
Arrested
6
Banks, George Emil , 40
09.25 Sep. 25
1982
Wilkes-Barre , PA
U.S.
13
Sentenced to death
7
Gz
06.32
1969.9
Hz
Chz
6.9
Zz
8
Liu Aibing, 34
12.12 Dec. 12
2009
Yinshanpai
China
13
Sentenced to death and executed
9
Guo Zhongmin, 36
02.18 Feb. 18
2003
Yangxiaoxiang
China
13
Committed suicide
10
Saeed Qashash, 19
06.10 June 10
1998
Amman
Jordan
12
Sentenced to death and executed
11
Jia Yingmin, 40
10.06 Oct. 6
2000
Kunlong
China
12
Committed suicide
12
Augusto, Pedro
08.00 Aug.
1900
Rio de Janeiro
Brazil
12
Arrested
13
Mz
09.32
1999.9
Oz
Lz
7.9
Zz
14
Abbas Khan
09.00 Sep.
1896
Jabbar
India
11
Arrested
15
Andangan
10.21? Oct. 21
1921
Cotabato
Philippines
11
Committed suicide
16
Ruppert, James Urban , 40
03.30 March 30
1975
Hamilton , OH
U.S.
11
Sentenced to eleven consecutive life terms
17
Jalal Osman Khoja, 40
12.26 Dec. 26
2000
Jeddah
Saudi Arabia
11
Committed suicide
18
Abdul Emir Khalaf Sabhan
08.26 Aug. 26
2003
Baghdad
Iraq
11
Committed suicide

Questions and formulas:
Question: What are the additional notes for Cotabato?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,D1="cotabato"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G18,D2:D18="cotabato"),7))
Level: medium
Question: What country in Kunlong in?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,D1="kunlong"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G18,D2:D18="kunlong"),5))
Level: medium
Question: Who went on a rampage in Baghdad?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,D1="baghdad"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G18,D2:D18="baghdad"),1))
Level: medium