Just been reading a bit.
Dems held the 103rd Congress '93-'95
Democrats introduced the "Federal Assaults Weapon Ban " on 10/26/1993
It Became Public Law No: 103-322 on 09/13/1994
November 8, 1994, Republican Revolution:
The Republican Party won control of both the House and the Senate in midterm congressional elections, the first time in 40 years the Republicans secured control of both houses of Congress.
From 1994 to 2004, the Federal Assault Weapons Ban was in place (CRS report here).
Years Shootings Per year People shot/year
1982-1994 19 1.5 25.5
1995-2004 16 1.6 20.9
2005-2012 27 3.4* 54.8*
*p<0.05 compared with 1995-2004.
Since the expiration of the gun ban in 2004, the number of shootings per year has doubled, and the number of victims per year has nearly tripled. Three of the bloodiest four years shown here occurred since the expiration. (see link)
However, the assault-weapon-ban hypothesis does not explain why victims and shootings were not as common before 1994. Has something new happened in the last decade? War? Economic disruption? Lax monitoring of the mentally ill? Whatever the case, renewing the assault weapon ban as a route to pre-2005 conditions seems like a rational response to today’s horrific events. (1)
During the ban:
May 1998, KK took a .22 Ruger, a 9 mm Glock, a Ruger semi rifle w/a 50 round magazine to murder his parents and two classmates.
April 1999, EH & DK used a Tec-DC9 semi handgun, a 9 mm Hi-Point semiautomatic carbine rifle and two sawed-off shotguns (supplemented by more than fifty bombs). Under the "Federal Assaults Weapon Ban ", only the double barrel sawed off shotguns were illegal, and the explosives. (2)
Columbine was meant to explode the building but it didn't happen. They couldn't bring down the town so they were going to bring down their school. A diversionary bomb was set off first to get LE occupied. There were a total of 76 devices found at the school, two diversionary devices, 13 devices in the suspects’ cars, and 8 more at their two homes or a total of 99 explosive devices. (2)
Street gangs immediately liked the Tec-DC9, which retailed for around $200, but it really gained popularity in the mid-Eighties after Miami Vice began to regularly feature dapper drug lords carrying it. Police called it criminals' "weapon of choice."
After the ban, The new version of the Tec-DC9, released in 1994, was renamed the AB-10. Garcia openly admitted that AB stands for after ban. The only change made to the gun was the removal of both the threaded barrel (which can hold a silencer) and the option of a barrel shroud. (3)
FWIW, E's website rant, in part, is in the link too. It's worth a read, at it is very similar to what we see, when these kids start to become. (3)
(1)Fed Ban 1994, Did it matter?:
http://election.princeton.edu/2012/12/14/did-the-federal-ban-on-assault-weapons-matter/
(2) Firearms at Columbine:
http://www.cnn.com/SPECIALS/2000/columbine.cd/Pages/EQUIPMENT_TEXT.htm
Bombs at Columbine:
http://www.cnn.com/SPECIALS/2000/columbine.cd/Pages/BOMBS_TEXT.htm
(3)How They Got the Guns (1999)
https://www.rollingstone.com/culture/features/how-they-got-the-guns-19990610