Rubuta ci gaba don wannan sakin layi - Shi tsohon babban jami'in 'yan sanda na musamman na OMON na Soviet ne kuma mataimakin shugaban' yan sandan Riga na binciken aikata laifuka. Ya yi aiki a matsayin kwamandan Riga OMON a 1990-1991. A watan Agusta 1990, Antyufeyev na ɗaya daga cikin waɗanda suka shirya taron MVD na Latvia inda kusan kashi 80% na rundunar 'yan sandan Latvia suka yanke shawarar ba za su amince da gwamnatin Popular Front of Latvia ba kuma su bi Kundin Tsarin Mulki na Tarayyar Soviet. Wadannan 'yan sandan daga baya za su shiga cikin yunkurin juyin mulkin da KGB ta jagoranci.
a cikin Janairu 1991. Saboda waɗannan ayyukan, gwamnatin Latvia ta zargi Antyufeyev da "laifuka a kan jihar" a watan Agusta 1991. Ya ce ya gudu zuwa Moscow sa'o'i biyu kafin a kama shi.