The three women had tried to heal him.

But two weeks after he was kicked out of a residential PTSD program in the heart of Napa Valley, decorated former Army infantryman Albert Wong, 36, came gunning for them — armed with a rifle.

He slipped back into Pathway Home in Yountville, Calif., during a going-away party on Friday morning and killed the three women — the program’s executive director and two of its therapists — and then himself.

One of the women was visibly pregnant.

Although officials said Saturday that it’s still too early to determine a motive for the killings, the three were clearly singled out.

Wong had let some workers go before slaughtering Pathway’s director Christine Loeber, 48, and psychologists Jennifer Golick, 42, and Jennifer Gonzales, 29, first holding them hostage Friday during an eight-hour standoff with cops.

Gonzales was seven months’ pregnant, according to officials.

Loeber had been so dedicated in running the Pathway program that she sometimes slept in her office, officials said.

Golick had kicked Wong out of the program, her father-in-law told reporters.

All four were found dead inside the building at around 6 p.m.

“They were having cake and toasting, apparently he just walked in with this rifle,” said the husband of one worker who escaped.

Wong had served one tour in Afghanistan from 2011-12.

The home was known for unconventional treatments, including swimming with dolphins and social events in which vets would mingle with young children.

With Wires