A 17-year-old boy has been arrested in last week’s shooting at a Spirit Halloween store in California that killed a pregnant woman and injured six other people, police said Monday.

The suspect, whose name will not be released because he is a minor, will be charged with one count of murder but could face an additional murder count because 31-year-old victim Constance Hages was pregnant, Fairfield Police Chief Dan Marshall said.

The teen was arrested in Suisun City, a municipality adjacent to Fairfield, where the shooting took place at Solano Town Center mall around 8:30 p.m. Friday, police said at a news conference Monday.

A 16-year-old boy and two men, ages 19 and 32, were left in critical condition, Marshall said.…