Brynn Hartman (d. 1998) was the wife and murderer of actor Phil Hartman.
Brynn and Phil's marriage wasn't very good because the former was high, causing the latter to threaten to leave her if it went on. For this, the next dark morning, while Phil was asleep, Brynn shot him in the head.
On the very same day she killed him, she shot herself, and her children had started living with their aunt.
(Feel free to make corrections if you know more than just this.)