A man last summer shot his pregnant ex-girlfriend in his Oglethorpe County home before he led police on a chase in which he threw the woman from his moving pickup truck, a recently filed search warrant reveals.

Haley Hill's baby was dead upon delivery at Athens Regional Medical Center and Hill died two days later.

The woman and unborn child were just two of several victims of the August incident in which authorities said after fatally shooting Hill, 23-year-old William Ryan Arnold engaged police in a shootout, hijacked a truck and rammed the 18-wheeler into a line of police cars.

In the warrant that was filed Thursday in Clarke County Superior Court, Arnold is said to have also held his grandmother and aunt hostage at gun point and threatened to shoot them if police came to his home where he already shot his former girlfriend.

Previously, authorities would not specify where and when the pregnant woman was shot, and they did not indicate that Arnold had held family members hostage.

The warrant containing the new information was filed by a Georgia Bureau of Investigation agent in Athens because the agency was seeking medical records from Athens Regional Medical Center, where Arnold was treated after being shot and arrested by law enforcement. The GBI wanted the records to see what wounds Arnold sustained, and also whether he was under the influence of any substances during his deadly rampage.

According to the warrant, Oglethorpe County deputies responded to Arnold's home early the morning of Aug. 24 to investigate a 911 call reporting that Hill was being beaten by Arnold. When deputies knocked on the door they heard someone yell out "who is it?" and a short time later a single gunshot was fired.

In an interview a day after the incident, Oglethorpe County Sheriff Mike Smith said the gunshot was fired from inside the home toward an open field. Because there was no evidence of a disturbance or anyone in the home except for the person who shot, Smith said he called off the deputies with plans to return after sun-up.

Two different deputies later that day went to Arnold's home and were told by someone inside they needed to put on some clothes before coming to the door, but when the person did not come to the door after 10 to 15 minutes the deputies left, according to the GBI warrant.

Then, according to the warrant, the sheriff spoke by phone with Arnold's father who related how his son told him to take a baby from the home because Arnold "would end up hurting the child." During that time, the warrant states, Arnold's sister told a deputy Arnold shot and injured Hill, and her grandmother and aunt were "being held against their will" and Arnold "would shoot all of the ones in the house if he saw law enforcement come to the house.

Smith then spoke by phone with Arnold, who told the sheriff "the only way he was coming out was to see his child," which was with Arnold's father, the warrant states. During the conversation, Arnold refused the sheriff's request that he allow Hill out of the house to show she was not injured, according to the warrant.

That was as far as the warrant goes in stating the chronology of events that occurred on Arnolds Place, a road off of Centerville Road in Lexington, where Arnold and other members of his family had residences.

After negotiations with Arnold, in which authorities asked him for visual proof the woman was unharmed, Smith said in the interview a decision was made to call in a Georgia State Patrol tactical unit. While members of the SWAT team were getting prepared to make entry to the house, Arnold left with Hill into some nearby woods where he got into a pickup truck and drove off. Smith said while officers were giving chase, Arnold threw Hill from the moving truck. While some officers stopped to render aid to the woman, others continued the chase. Hill's baby reportedly was pronounced dead upon being delivered at Athens Regional Medical Center. The 23-year-old woman never regained consciousness and she died upon being removed from life support systems two days after she was injured.

During the chase, Arnold shot at the pursuing officers, and after turning onto a dirt road off Centerville Road, Arnold's pickup reportedly struck a pot hole and spun out. Police said he got out of the vehicle and exchanged shots with a state trooper before fleeing to a nearby logging site where Arnold commandeered a skidder, a vehicle used to haul felled trees from the woods, then hijacked a tractor-trailer truck that was loaded with timber.

Deputies and a state trooper tried to block the big rig from leaving, and when the truck driver would not obey Arnold's command to ram the officers' vehicles, Arnold shot the driver and took control of the truck, steering it into the police vehicles, at which time the officers opened fire on the truck and wounded Arnold, bringing the man's rampage to an end.

In an indictment filed in November in Oglethorpe County Superior Court, Arnold was charged with malice murder, felony murder, feticide, kidnapping, hijacking, armed robbery and multiple counts of aggravated assault.

The driver of the hijacked truck suffered numerous bullet wounds, all of which he apparently sustained when law enforcement opened fire on his vehicle, as the indictment does not charge Arnold with shooting the trucker.

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