A woman who shot three people dead at a Rite Aid distribution center in Maryland was a disgruntled employee who had been working there for less than two weeks, authorities said.

Snochia Moseley, 26, opened fire Thursday at the facility near Aberdeen — the second workplace rampage in the United States in 24 hours.
She killed three people and left three others wounded before turning the gun on herself, authorities said.
“There’s just no way to make sense of something that’s so senseless,” Harford County Sheriff Jeff Gahler said Friday, adding that the motive remains unclear.
A source close to the investigation said Moseley was a disgruntled employee at the facility about 30 miles northeast of Baltimore.
Moseley showed up for work at the warehouse, where she was a temporary employee, at her normal time Thursday morning.
Gahler said she went home at one point and returned later with a handgun, pepper spray and a pair of handcuffs. She began shooting during break time as some employees headed outside, Gahler said.
About 65 workers were in the warehouse at the time. the sheriff’s office said. Moseley opened fire outside the building and on the warehouse floor. The first victim was shot outside and five others inside the warehouse. She then fatally shot herself in the head with the same 9 mm Glock pistol, Gahler said.
[more at cnn.com]shi