Given the following context:

Fowzi Nejad was the only gunman to survive the SAS assault. After being identified, he was dragged away by an SAS trooper, who allegedly intended to take him back into the building and shoot him. The soldier reportedly changed his mind when it was pointed out to him that the raid was being broadcast on live television. It later emerged that the footage from the back of the embassy was coming from a wireless camera placed in the window of a flat overlooking the embassy. The camera had been installed by ITN technicians, who had posed as guests of a local resident in order to get past the police cordon, which had been in place since the beginning of the siege. Nejad was arrested, and was eventually tried, convicted, and sentenced to life imprisonment for his role in the siege. He became eligible for parole in 2005.
As a foreign national, he would normally have been immediately deported to his home country but Article 3 of the European Convention on Human Rights, incorporated into British law by the Human Rights Act 1998, has been held by the European Court of Human Rights to prohibit deportation in cases where the person concerned would be likely to be tortured or executed in his home country. Nejad was eventually paroled in 2008 and granted leave to remain in the UK, but was not given political asylum. The Home Office released a statement, saying "We do not give refugee status to convicted terrorists. Our aim is to deport people as quickly as possible but the law requires us to first obtain assurances that the person being returned will not face certain death". After 27 years in prison, Nejad was deemed no longer to be a threat to society, but Trevor Lock wrote to the Home Office to oppose his release. Because it is accepted by the British government that he would be executed or tortured, he cannot be deported to Iran under the Human Rights Act 1998. He now lives in Peckham, south London, having assumed another identity.

answer the following question:

What is the last name of the person whose release was opposed by Trevor Lock? 

Nejad