Maoists abducted Thapa on June 26, and a rebel commander said on August 16 that they had executed him on August 11, according to local news reports.
Maoist rebels posted leaflets in Thapa's hometown in Dailekh on August 17 "charging" him with 10 counts of crimes against what the rebels refer to as their "people's regime." Among other accusations, the rebels accused Thapa of spying for state security forces while using his profession as a cover.
Thapa belonged to the Federation of Nepalese Journalists (FNJ) and was an adviser to the local branch of Human Rights and Peace Society, a Nepalese human rights group. A delegation from FNJ met with Maoists in Dailekh to make appeals on Thapa's behalf before the rebels said they killed him.
Journalists took to the streets of the capital, Kathmandu, on August 18 to protest Thapa's killing, according to local news reports. Local journalists said that his murder and the subsequent death threats were intended to silence the press in the Maoist-controlled midwestern districts of Nepal.
In a rare response to journalists' outrage, Maoist spokesman Krishna Bahadur Mahara wrote a letter to FNJ in September in which he called the murder a breach of policy, promised to investigate the killing and to respect press freedom, and stated that the party had conducted "self-criticism" on the matter.