An arrest has been made in the mysterious slaying of a Port Credit woman found dead on her own driveway a week after she disappeared.

Gil Dasilva, 64, of Mississauga, has been charged with second-degree murder in the death of Cheryl McVarish, 43. Blunt force trauma was a contributing factor in her death, Peel Regional Police homicide detectives have now revealed.

Dasilva is the father of McVarish’s live-in boyfriend. The accused was arrested Tuesday, May 2 at his home.

Police said they have received information that Dasilva had been convicted of "an incident" outside of Canada, but they are working to confirm that information. A friend of the family said he was released from jail just six months earlier, after serving time for an offence, possibly in Portugal.

McVarish, a mother and grandmother, had been reported missing after she left her Westmount Avenue home to go to the store around 11 a.m. Monday, March 13. She was last seen in the area of Lakeshore Road East and Cawthra Road, just a 10-minute walk from home, around 11:30 a.m. that same day.

Her body was found exactly one week later, just after 9 a.m. on Monday, March 20. A dog walker spotted her in her driveway, which is located on First Street, around the corner from the front of her home.

Police have revealed that blunt force trauma was a contributing factor in the cause of death, but the coroner’s office is still reviewing the case.

"The mechanism of death is currently under review by the coroner’s office," said a news release.

Police are not saying when they think McVarish was killed. Though Dasilva was arrested at his home, police haven't said if he lived with McVarish and her boyfriend or if he lived elsewhere in Mississauga.