Two women in their 70s were sentenced to life imprisonment in Los Angeles Superior Court Tuesday for killing two homeless men to collect the victims' $2.8 million life insurance money.

Helen Golay, 77, and Olga Rutterschmidt, 75, received the sentence from Judge David Wesley. A jury convicted the septuagenarians dubbed the "Black Widows" in April for running over Paul Vados, 73, in 1999 and Kenneth McDavid, 50, in 2005.

Golay and Rutterschmidt befriended Vados and McDavid, sheltered and took care of the two men for two years, and took out insurance policies on them before killing them to claim their insurance money.

The two women's money-making scheme was discovered when investigators of McDavid's accident learned that the case was similar to Vados' accident.