A 90-year-old San Jose man was arrested Tuesday on suspicion of murdering his stepdaughter last week, police announced Thursday.

Anthony Aiello was arrested more than a week after San Jose police officers responded to a welfare check in the 1000 block of Terra Noble Way and found Karen Navarra, 67, unresponsive with visible injuries, according to the San Jose Police Department.

Navarra was pronounced dead at the scene. It is unknown what prompted the welfare check.

Officials with the Santa Clara County Coroner’s Office investigated the scene and homicide detectives later identified Aiello as a suspect in Navarra’s death.

Aiello was arrested by officers with the San Jose Police Department’s Covert Response Unit Tuesday, officials said.

He was booked on suspicion of murder and is being held without bail in Santa Clara County Jail.

Anyone with information about this case may contact Detective Mike Montonye or Detective Brian Meeker of the San Jose Police Department’s Homicide Unit at 408-277-5283.

Anonymous callers may call the Crime Stoppers tip line at 408-947-7867.

Lauren Hernandez is a San Francisco Chronicle staff writer. Email: lauren.hernandez@sfchronicle.com Twitter: @LaurenPorFavor