An investigation  into the death of a Texas man more than two months into the making, and with all the trappings of a made-for-TV movie, has ended in the arrest of his wife.

Police on Monday arrested Michele Williams, 42, near her home in Keller, Texas, for the October shooting of her husband, Gregory, 40.  She was also charged with making a false report to a police officer and tampering with or otherwise fabricating physical evidence.

The investigation that led to Williams' arrest began more than two months ago on Oct. 13 when she called 911 at 4:40 a.m. to report that a man dressed in black had entered the couple's home in a gated community in the Dallas suburb.

Williams reported the man entered through the back door, hit her on the head and then fatally shot her husband, according to police reports.

Police investigating the murder said they found Williams' story did not match the crime scene evidence.

There were no signs of forced entry in the home, a neighbor's security camera showed no one approached the couple's house that night and K-9 unit dogs did not detect any scents of a possible intruder, police said.

Four hours after her initial 911 call, Williams changed her story to police.  She said her husband had committed suicide and she staged the break-in, including hitting herself with a wrench, to protect the couple's 4-year-old daughter from learning her father had killed himself, police reports state.

Williams remained free, but she later confessed to police that she tampered with and fabricated evidence to make the scene appear that an intruder killed her husband and physically assaulted her, according to a press release issued by authorities in Keller.

"When you walk into the house and you see all pieces of evidence all in one small area, that is very suspicious," said Keller Police Department Lt. Brenda Slovak.

Investigators recreating the scene also determined that Gregory Williams was shot by someone standing 16 to 18 inches away from him, not an act of suicide, police said.

Williams, who moved to a nearby town after the shooting, is now in jail in Keller facing a $522,000 bail, according to the release.

Police have not disclosed a motive for why Williams, who has no prior criminal record, allegedly shot her husband.

Attorneys for Michelle Williams did not respond to ABC News' requests for comment.

The UPI contributed to this report.