Scientist Yoshiki Sasai, age 52, committed suicide and was found dead on August 5, 2014. Sasai was deputy director of the Center for Developmental Biology (CDB) at RIKEN in Kobe, Japan, and coauthor on two recently retracted Nature papers about an easier way to make induced pluripotent stem cells. The papers were retracted due to duplication and manipulation of images done by the main researcher and lead author on the two papers – Haruko Obokata. Although cleared of any direct involvement, Sasai was under immense pressure and heavily scrutinized by the media, public and peers. This involved speculation about Sasai’s intentions to orchestrate a media frenzy, and for being overly ambitious and motivated to win future grants overlooking the integrity of the science.
According to colleagues at RIKEN, Sasai was receiving counseling since the scandal broke headlines and he was also hospitalized for about a month in March (1). He was found hanging in a stairwell of a neighboring building and beside him were three letters addressed to CDB management, his laboratory, and Obokata. On August 12, Kazuhiro Nakamura, the family lawyer explained the contents of Sasai’s suicide note left for the family. Sasai was “worn out by the unjust bashing in the mass media and the responsibility he felt towards RIKEN and his laboratory” (2). But unsubstantiated claims in the media were not the only source of stress for Sasai. The speculation in tabloids might have also influenced how RIKEN and other colleagues behaved towards Sasai. In June, a report released by an independent RIKEN reform committee criticized CDB leaders for hyping the science and did not interview Sasai about such accusations. Their final recommendation was to dismantle CDB. According to the family lawyer, this was a tremendous shock for Sasai (2).
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