At the RAM Coates studied the viola with Lionel Tertis and composition with Frederick Corder. At the RAM, Bush studied composition under Frederick Corder and piano with Tobias Matthay. Corder, Urquhart's bodyguard and security advisor, puts the King and other enemies under surveillance. Further rumours circulated about the death of Corder and Marten's child. He studied there until 1905, learning composition with Frederick Corder and piano with Tobias Matthay. Corder and Honey finally marry one another. A young woman, Maria Marten, was shot dead by her lover William Corder. Pieces of the rope which was used to hang Corder sold for a guinea each. Error analysis in SLA was established in the 1960s by Corder and colleagues. Corder (1973) distinguished two kinds of elicitation&colon;"clinical" and "experimental" elicitation. Corder and his staff execute Krajewski and blame it on Irish republican terrorists. Maria was never seen alive again and Corder fled the scene. The pressure on Corder to produce his wife eventually forced him to leave the area. Corder entered a plea of not guilty. William Nemser called it an "approximative system" and Pit Corder called it "transitional competence".