Edit
Dylan Bennet Klebold (born: September 11, 1981 – April 20, 1999) was an American school shooter and mass murderer who perpetrated the Columbine high school massacre on April 20, 1999, in Columbine, Colorado alongside with Eric Harris.
Klebold had short curly blonde hair and blue eyes. Posts may depict height difference between Harris and Klebold as Harris was 5'9 and Klebold was 6'3.
On the day of the massacre, Klebold wore a backwards black baseball cap that said "B" and a short-sleeved black shirt t-shirt with red English writing that said "WRATH" and showed his bare arms. He wore a black single fingerless glove on his left hand and wore suspenders, a black belt, black pants, and black lace-up ankle boots. He wielded a tec-9.
He was a fan of KMFDM. His online alias was "VoDKa" and "VoDkA" as it contained his initals.

Pixiv
Twitter
Bluesky
Weibo
Lofter
Tumblr