Massachusetts ? It was “obviously” a homicide case, a former prosecutor says, but authorities didn’t have the evidence to present it to a grand jury at the time. Twenty-four-years lapsed and three other killings occurred before another prosecutor did.

Amy Bishop, the biology professor charged with killing three of her colleagues at an Alabama university, has been indicted on a first-degree murder charge in the 1986 shooting death of her brother in Massachusetts, prosecutors announced Wednesday.

Prosecutors who originally concluded that Bishop accidentally killed her 18-year-old brother, Seth, now say police failed to share important evidence, including an alleged carjacking attempt by Amy Bishop after the shooting.