Michael McKean is still processing the shocking death of his friend Rob Reiner, who was murdered alongside his wife, Michele Singer Reiner, in December 2025. “I’m still adding it up,” he told Page Six exclusively at a press day for his upcoming off-Broadway show, “Are You Now or Have You Ever Been,” earlier this week. “That was a rough time.” The “Better Call Saul” alum, 78, met Reiner in 1969 when they were introduced by David Lander, who went on to star opposite McKean in “Laverne & Shirley.” Michael McKean, seen here in 2025, spoke to Page Six about his decades-long friendship with the late Rob Reiner. Todd Owyoung/NBC via Getty Images The two, photographed above in 2000, first met in 1969 in New York. Getty Images McKean says he and Reiner “were pretty close.…