ST. LOUIS, Mo. – Police believe a St. Louis principal hired a hitman to kill his pregnant teacher girlfriend, and possibly used money stolen from a school fundraiser to pay the assassin.

Carr Lane Visual and Performing Arts School Principal Cornelius Green, 35, allegedly sent lifelong friend Phillip Cutler $2,500 in cash through the mail and later picked him up at a Greyhound bus station when he arrived in St. Louis from Muskogee, Okla., the St. Louis Post-Dispatch reports.

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Prosecutors allege Green then drove Cutler, 36, by the apartment of his pregnant girlfriend, Mann Elementary School third-grade teacher Jocelyn Peters, and provided Cutler his set of keys to Peters’ apartment before leaving for Chicago on March 22 for several days.

Peters, 30, was seven months pregnant when she was killed by a single gunshot to the head, with no signs of forced entry. Peters and Green possessed the only two sets of keys, police allege.

Surveillance video showed Green’s car on Peters’ street “within the range of time of death of the victims” and “Historical Precision Location Information obtained from Cutler’s cell phone provider shows that his phone was near the victim’s apartment at that time,” according to court documents cited by The Washington Post.

Green reportedly discovered Peters’ body and contacted police on March 24. During questioning, Green allegedly asked investigators to use the phone to call his daughter, but instead called his estranged wife and instructed her to meet Cutler at a gas station with keys to Green’s car, which he wanted moved from Peters’ apartment.

Police arrested Cutler at the rendezvous instead, the news site reports.

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Green now stands accused of two counts of first-degree murder, one for Peters and one for the unborn child, who police confirmed was his daughter. He also faces theft charges for allegedly stealing $2,700 from a school dance group while principal at Carr Lane about three weeks before the murder, CBS News reports.

Green was reassigned to an information technology job over the summer and was eventually terminated from St. Louis Public Schools.

“It’s a police matter now and he’s not a current employee, therefore there’s no statement from the district,” a district spokesman said.

Green is now in jail on a $3 million cash-only bail. Cutler was later arrested in Muskogee, Okla., and charged with two counts of first-degree murder, two counts of armed criminal action and one count of first-degree burglary. He’s in jail on a $1 million cash-only bail.

Green and Peters had signed up for a baby registry for items like “bibs, butterfly dresses and pink booties,” and Peters was content and thriving in life, friends and relatives told the Post-Dispatch.

“She was a very great schoolteacher,” Peters’ mother, Lacey Peters, said. “She was real nice, happy-go-lucky, a big believer in education.”

Friends said Peters was a regular community volunteer since she was 12, and attended the University of Missouri before becoming a teacher with St. Louis Public Schools five years ago. She spent most of her time working with children and with friends, family and her church, Lacey Peters said.

Maryanne Dersch, a mother of a learning disabled boy Peters tutored for two years before her death, described the teacher as a “wonderful influence on his life,” the Post-Dispatch reports.

“She was just so beautiful,” Dersch said. “Not just beautiful-looking, but like, this beautiful person. She just had a very decent soul. It’s just really tragic, and she was so young.