I've already pointed out the case of Sylvia Seegrist enough times.
There are superficial similarities, though manifold differences:
She threatened people commonly, with police being aware of her identity for some time..
She began identifying herself with war and militarism and developed a fascination with negative energy and the San Ysidro McDonald's massacre killer James Huberty.
She started wearing camouflage pants, wraparound sunglasses, a red Arabian-style headdress, and two T-shirts, one saying "Kill Them All", the other reading "Jihad", wearing this attire whilst in the spa and steam room of a local fitness club.
She signed up for the U.S Army in December 1984, but was discharged two months later due to behavioral problems induced by her mental illness.
On one occasion she tried to strangle her mother to death; on another she stabbed her counsellor in the back with a paring knife.
I mean: let members decide whether there's a link between Sylvia Seegrist and Sheila Caffell.