bother for hernandez stemmed in july 2017, when she suffered a stroke that left her partially blind, which her .
"as soon as she saw him," said tamara nunley, r.n., "you could see her perk up." .
robert, from los angeles, had four children from a previous marriage when he met helen through friends in the early 1960s. .
the outbreak killed 20 and sickened 577 people between november 2016 and october 2017.