03/17/2012 12:01 pm ET

Laurie May, Aurora Mother, And Her Children Still Missing, Reward Offered For Their Return (VIDEO)

As an Aurora, Ill. woman and her three young children remain missing after more than a month, the children's grandmother this week offered a $5,000 reward for information leading to their safe return.

Laureth "Laurie" May, 29, was last seen when she packed up her white 2001 Volvo station wagon with her three children -- Quincy Collins, 4; Oliver Collins, 2 and Spencer Collins, 1 -- and left their home on Feb. 15, the Chicago Sun-Times reports. May had gotten into an argument with Shelton Collins, her fiancee, on Valentine's Day.

Since then, police haven't had much luck investigating their disappearance and all four individuals are considered "missing and possibly endangered," the Sun-Times reports.

A fifth individual, Destiny Gruba, 17, of Cicero, is also missing and is suspected to have been picked up by May. May had, according to ABC Chicago, been fired from her job as an art teacher just days before her disappearance due to inappropriate conduct with Gruba, a former student of hers.

Tara Selman of Geneva, May's mother and the boys' grandmother, told the Daily Herald that her offering of a reward is a means "to make sure that people don’t forget the picture of Laurie and her three boys." Although their disappearance received some media attention last month, few new leads have emerged in recent weeks.

"I want my grandchildren," Selman told ABC. "I want to see them, I want to play with them, and hold them and read to them."

The children's father is "absolutely cooperating" with authorities, according to the Herald.

The children are all fair-skinned, black boys with black hair and brown eyes. May is described as 5 feet tall, 135 pounds with red hair, blue eyes and freckles. Gruba is about 5-foot-10, 235 pounds with long brown, curly hair and hazel eyes.

Anyone with information pertaining to the missing individuals is urged to contact Aurora police at 630-256-5500, Cicero police at 708-652-2130 or any local police department.