Jeffrey Karl Leischner was born on November 8th, 1975 to Gary and Patricia Leischner in Moscow, Idaho.
In February 1978 the family moved to Kennewick, Washington.

Growing up Jeff enjoyed playing baseball, basketball and soccer, and especially playing the guitar, as well as fishing and camping. He joined cub scouts, eventually earning the rank of Eagle Scout.

He attended Kennewick High School, where he excelled in all his classes. He enjoyed German language class most. He joined the German club where he served as the President. His family hosted a German student, Resy, and he in return was hosted by her family in Germany for the summer.

After graduation from High School he attended Columbia Basin College earning his Associate degree in computer science. He then moved to Bellingham where he earned a degree in computer science networking from a technical school. He worked for numerous companies as a network engineer including Bellingham and Lynden school districts, as well as Silver Peak which eventually merged with HP.

In November of 2025 he was diagnosed with cancer and began treatment in January of 2026. The cancer was too aggressive and he passed away June 20, 2026.

He leaves behind his mother and father. His sister Kristina (Zachary) Villarreal and two nephews, Gavin and Greyson.