Jehovah's Witnesses have been doing a primitive form of this for decades. They search the obituaries for people in their area who have recently died, and within days they "coincidently" stop by the home of the deceased of their families. They enquire how things are going, "find out" that a loved one has died, then offer consolation, reading material, and an invitation to study the Bible with them.
I've seen this myself a number of times. Once, when the husband of an elderly Jewish neighbor of my in-laws passed away, they were at her door the next day after the funeral. She was expecting them and chased them down the street with a broom.