Seki, 44, was convicted of killing 4 individuals in Chiba, southeast of Tokyo, in 1992 when he was 19, the ministry mentioned.
It was the primary execution of a death-row prisoner who dedicated crimes as a minor since 1997 in Japan, native media mentioned.
Persons are thought-about adults on the age of 20 in Japan.
Matsui, 69, was sentenced to demise for killing his girlfriend and her mother and father in 1994.
Each have been in search of a retrial, native media mentioned. Although not unprecedented, it’s uncommon in Japan to place to demise these interesting for a contemporary trial.
“They have been extraordinarily merciless circumstances,” Justice Minister Yoko Kamikawa informed reporters.
“I ordered the executions after very cautious consideration,” she mentioned.
Japan and america are the one main developed nations that also perform capital punishment.
The demise penalty has overwhelming public help in Japan regardless of repeated protests from European governments and human rights teams.
Opponents say Japan’s system is merciless as a result of inmates may be on demise row for a few years in solitary confinement and are solely informed of their impending execution a number of hours forward of time.
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