The House Government Oversight Committee subpoenaed three key figures in the Hillary Clinton email scandal to testify at a hearing Tuesday. Two declined to testify, citing their Fifth Amendment rights. A third refused to show up at all.

One of those who took the Fifth was Paul Combetta, a technician at Platte River Networks, the company that handled Clinton’s email system. Combetta is the man who actually deleted Clinton’s email archives in March 2015, using the now-notorious BleachBit program. The Justice Department reportedly gave Combetta immunity in its investigation, yet he still refused to talk to Congress.