6:15 AM PT -- Bryan Kohberger was officially booked into Latah County Jail at 6:44 Wednesday night where they took a new mug shot. He remains expressionless as he faces 4 counts of murder and one count of burglary.
Idaho murder suspect Bryan Kohberger is now in the company of 22 people who've allegedly committed crimes ... and some of the inmates are facing serious charges themselves.
Nearly 2 dozen inmates are locked up at the Latah County Jail in Moscow, where Kohberger's also landed ... and while some are locked up for minor crimes like petty theft and driving without privileges, others are facing very serious charges.
One of his fellow inmates is Micah James DeMoss -- who's facing 8 counts of video voyeurism, 2 counts of child sexual exploitation material and a charge of rape, where the alleged victim is 16 or 17 and the alleged perpetrator is 3 years older.
Brandi Lea Holland is also spending time at Latah County ... charged with aggravated assault, possession of a controlled substance and misdemeanor drug paraphernalia.
As we reported, Kohberger is in ID just days after his arrest because he waived extradition from Pennsylvania ... pics obtained by TMZ showed him and a handful of armed officers stopping to refuel the plane Wednesday in Champaign, IL ... en route to Idaho.