A suicide note and a police investigation reveal that the 60-year-old university lecturer who killed himself yesterday had a long set of grievances against the two lecturers he shot and killed the day before.
First of all, police said they learnt from a close associate of Dr Wanchai, who was also his student, that the suspect was hiding at the Suparp Hotel on Sutthisan Winitchai Soi 1 in the Phaya Thai district of Bangkok.