Former “West Wing” actor Rob Lowe shared a heartfelt goodbye to his 16-year-old Jack Russell Terrier, Buster, on Instagram Monday night. “Buster was the best #dog a family could ever ask for. An unforgettable spirit of love, loyalty and energy. And a huge part of raising our sons. We are grateful to have had him for so many years and so many memories. No one will ever forget our great #Buzzoom". #love,” he wrote. The post came just a day after the 52-year-old star shared a photo of his son Matthew cuddling with the dog, and sharing that his son was starting law school on Monday. — Read it at the U.K.’s Daily Mail