BANGOR — A local man was indicted Wednesday on one count each of murder, kidnapping and gross sexual assault by a Penobscot County grand jury in the strangulation death of a Husson University student earlier this month.

Zackery Mailloux, 21, was arrested and charged with murder Nov. 18 shortly after police discovered the body of Brooke Locke, 21, of Auburn at the Essex Street apartment the couple shared. The couple had recently broken up, according to a previously published report.

Mailloux is being held without bail at Penobscot County Jail.

The affidavit in the case was unsealed Wednesday after Mailloux was indicted. It said he called Bangor police at about 2 p.m. Nov. 18 to report he had strangled his ex-girlfriend at 166 Essex St. in Bangor.

A third-year occupational therapy student at Husson, Locke was a member of the Epsilon Tau Epsilon sorority. Her sorority sisters held a vigil Sunday night at Newman Gymnasium on campus.

More than 150 students, faculty, staff, alumni and community members attended the 45-minute service. Locke’s parents, Priscilla Locke of Auburn and Bill Locke of Darby, Mont., and other relatives attended the vigil but did not address the gathering.

Red, silver and black balloons adorned one end of the gym and posters displayed photos of Locke. Those who spoke described Locke as a young woman who was always smiling, eager to help others and hardworking.

Locke’s Edward Little High School classmates are holding a candlelight vigil at 5 p.m. Wednesday at the school, according to Cassandra Hartford, who along with 2010 Class President Chris Camire has created the Facebook page, “In Remembrance of Brooke Locke.”