Mass killers on Time magazine

Recently someone uploaded many numbers of the Time magazine to Internet Archive (from 1988 to around 2013).
I would like to know what numbers have articles about mass killers/mass killings. This is what I’ve found so far:

February 29, 1988 - Richard Farley (one page)
January 30, 1989 - Patrick Purdy (one page)
October 28, 1991 - George Hennard (three pages, 1 2 3)  
August 23, 1993 - Dion Terres (two pages, 1 2)
December 20, 1993 and January 10, 1994 - Colin Ferguson (one number, and one page)  
April 03, 1995 - Sarin gas attack (one number)
May 01, 1995 - Oklahoma City Bombing (one number)
April 15, 1996 - Unabomber (one number)
October 20, 1997 - Luke Woodham (one page)
June 01, 1998 - Kip Kinkel (three pages, 1 2 3)
May 03 - 10, December 20, 1999 - Columbine (2 numbers, and a long article on another one)  

A few missing:
August 09, 1999 - Mark Barton
April 04, 2005 - Jeff Weise

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-For those interested in searching more articles, I’ll leave this link here, as a way of making a quick search. It searches a specific word (in this case “Klebold”) on a specific collection (on this case “Magazine Rack”). If you want to search two words, put a “+” in the middle (“Dylan+Klebold” for example)
[You must be registered and logged in to see this link.]

-To download a jpg file individually, just go to “show all”, and there search a zip file and go to “view contents”. There all the jpg files can be seeing and downloaded individually.