Table:
0
A
B
C
D
E
F
G
1
Perpetrator
Date
Year
Location
Country
Killed
Injured
2
Delgado Morales, Campo Elias , 52
12.04 Dec. 4
1986
Bogotá
Colombia
29
12
3
Hennard, George Pierre , 35
10.16 Oct. 16
1991
Killeen , TX
USA
23
19–22
4
Huberty, James Oliver , 41
07.18 July 18
1984
San Diego , CA
USA
21
19
5
Ferreira de França, Genildo , 27
05.21 May 21/22
1997
Santo Antônio dos Barreiros
Brazil
14
03 3
6
Wong, Jiverly Antares , 41
04.03 April 3
2009
Binghamton , NY
USA
13
04 4
7
Hz
05.32
1959.9
Jz
Bz
100.9
100.9
8
Unruh, Howard Barton , 28
09.06 Sep. 6
1949
Camden , NJ
USA
13
03 3
9
Holmes, James Eagan , 24 (suspect)
07.20 July 20
2012
Aurora , CO
USA
12
62
10
Pough, James Edward , 42
06.17 June 17/18
1990
Jacksonville , FL
USA
11
06 6
11
Lozano Velásquez, Juan de Jesús, 26
06.24 June 24
2000
Bogotá
Colombia
11
05 5
12
Caceres, Gregorio, 50
02.18 Feb. 18
1942
Trujillo
Venezuela
11
04 4
13
Pz
08.32
1994.9
Rz
Mz
100.9
100.9
14
Flores, Oscar, 23
07.31 July 31
2005
San Jerónimo de Juárez
Mexico
11
02 2
15
Unknown
12.18? Dec. 18
1936
Monte Aprazível
Brazil
10–16
0.0 ?
16
McLendon, Michael Kenneth , 28
03.10 March 10
2009
Kinston , Samson & Geneva , AL
USA
10
06 6
17
Starkweather, Charles , 19 Fugate, Caril Ann , 14
01.21 Jan. 21–29
1958
Lincoln & Bennet , NE Douglas , WY
USA
10
0.1 0
18
Malagón González, Arnoldo, 22
06.01 June 1
1993
Soacha
Colombia
10
0.0 ?

Questions and formulas:
Question: What was the injured entry for the row with a killed entry of 29?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,F1=29),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G18,F2:F18=29),7))
Level: medium
Question: What location has a killed of 100.9, and a year later than 1993?
Formula: LET(query1,LET(query1,FILTER(A1:G1,F1=100.9),SUMMARIZE(CHOOSECOLS(query1,4),SUMX(CHOOSECOLS(query1,3)))),FILTER(query1,CHOOSECOLS(query1,2)>1993))
Formula2: LET(query1,LET(query1,FILTER(A2:G18,F2:F18=100.9),SUMMARIZE(CHOOSECOLS(query1,4),SUMX(CHOOSECOLS(query1,3)))),FILTER(query1,CHOOSECOLS(query1,2)>1993))
Level: hard
Question: What was the injured entry for Venezuela?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,E1="venezuela"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G18,E2:E18="venezuela"),7))
Level: medium