He's in very poor health, with serious heart issues. If he has one more heart incident, likely he won't survive.
My father was raised Catholic but rejected Catholicism long ago. He laughs at the Church teachings and feels his life of of "footloose and fancy free" is the best. Although I do ask that you pray for his health, more importantly I'm begging for prayers for his eternal soul. I love my father, but to be honest, I'd rather see him die tomorrow in communion with Christ and the Church, after receiving the sacraments, then have him live another ten years and pass away without conversion. Pray for his soul, please!