Taggert had a varied career as a TV and film writer. His television resume from the 1970s includes episodes of Adam-12 and Emergency!, as well as the 1984 NBC miniseries V: The Final Battle. He later worked on the V series that lasted a season, and had three telefilms on his resume:1974’s The Mark of Zorro, What Ever Happened to Baby Jane? and Omen IV: The Awakening.
He turned to film in the 1980s and scored a feature with the slasher picture Visiting Hours in 1982. The film depicted actress Lee Grant as a TV journalist targeted by serial killer Michael Ironside.
Taggert shared Poltergeist III credit with director Gary Sherman. They had also collaborated on the drama Wanted: Dead or Alive starring Rutger Hauer in 1987.
No information was immediately available on survivors or a memorial service.