A former Washington substitute teacher — convicted in 2014 in King County for possessing child pornography that was discovered on his computer by a service technician — is now facing allegations in Clark County under nearly identical circumstances.Kurtis L. Kasner, 75, of Vancouver made a first appearance Tuesday in Clark County Superior Court on suspicion of second-degree possessing depictions of a minor engaged in sexually explicit conduct. He is also accused of violating his community custody. Kasner reported he is under supervision by the Department of Corrections in the 2014 case, court records show.According to an October 2014 story in The Seattle Times, Kasner had been a substitute teacher since 2000 in the Northshore School District, which covers the cities of Bothell, Kenmore, Woodinville and parts of unincorporated King County. He also was a school teacher in California for 30 years before moving to Washington.In the 2014 case, Kasner had purchased a new computer, but it wasn’t operating properly so he took it to be repaired. The technician assigned to work on it discovered the images of child pornography, the Times reported.Most recently, Kasner sent an external hard drive to a computer repair company, which discovered child pornography on the drive, according to an affidavit of probable cause filed in Clark County Superior Court.