A member of the Zizians group, Michelle Zajko, has been charged with murder in the 2022 shooting deaths of her parents in their Pennsylvania home, with prosecutors saying she did not act alone.

Investigators cited doorbell camera footage, ballistic evidence, and cellphone records linking her to the crime, though they are still searching for possible co-conspirators.

Zajko, who is already jailed on other charges, has denied involvement and claimed her father may have killed both parents.

The case is part of a broader series of violent incidents connected to the Zizians, a loosely associated group with extremist ideological beliefs, the AP has reported.

Authorities say multiple deaths across several states have been linked to members of the group since 2022.