The death sentence was upheld by the supreme court and carried out after the cleric's family decided not to spare the life of the killer who refused to express regret.
The authorities have denied accusations of torture and repressing the opposition, and say they are protecting national security from terrorists.
Lawyers for Liberty says Malaysians form the bulk of foreign nationals currently facing execution in Changi prison.
The report comes days after Iran said it had dismantled a 'new' US spy network in the country linked to the CIA.
There has been a series of conflicting reports over the past five days about shakeups in North Korea's team.
Some previous South Korean reports of North Korean purges and executions have later proved inaccurate.
He has two weeks to file his intended application together with any supporting evidence.
Executions in the ultra-conservative kingdom are usually carried out by beheading.
The capital punishment figures fell around the world from at least 993 in 2017, to at least 690 last year.
The video comes as Nigerian and regional forces have intensified their activities against ISWAP in northern Borno.
Michael Garing was executed at Changi Prison this morning, the second Malaysian to be sent to the gallows in Singapore.
Billie Wayne Coble was convicted for the 1989 murders of three people – the parents and brother of his wife, who had asked for a divorce.
A federal appeals court earlier this week rejected a bid for a stay of execution that argued Jennings had lacked adequate legal representation for taking full advantage of possible appeals of his case.
The Liaoning High Court in late December ordered the case retried after prosecutors said the sentence was too light and improper.
The hangings comes 5 months after the nation carried out the executions of cult members sentenced to death for their role in the fatal 1995 sarin attack on the Tokyo subway and other crimes.
Hamidreza Bagheri Dermani is the third businessman to be executed since an anti-corruption drive was launched over the summer.
There have been only 11 executions this year in all other US states that carry out the death penalty.
Lethal injection is the preferred method of putting people to death in all US states that have the death penalty.
The men attacked guards for their uniforms and forced another to open the door. One of the men's fathers was waiting in a car outside.
Only nine US states still use the electric chair as a form of capital punishment.
Retired Court of Appeal judge Mah Weng Kwai also recalls witnessing the execution of two brothers 35 years ago.
N Surendran accuses the Singapore government of breaching its own constitution by rejecting the family's clemency bid on grounds that the clemency process had concluded.
Lawyers for Liberty says accused drug trafficker Prabu N Pathmanathan will be hanged on Friday unless the government intervenes.
Ali Avci was arrested last year after the release of a trailer for his film Awakening, based on a failed military putsch in 2016 in which more than 250 people were killed.