VIDEO : David Spade Shares Touching Photos Of Sister-In-Law Kate Spade Following Her Suicide

Designer Kate Spade committed suicide following an apparently lengthy battle with depression. Her brother-in-law, actor and comedian David Spade is mourning the loss. He shared some touching photos and comments on Twitter and Instagram. The first photo he shared on Twitter was Kate at his book signing. The other photo he shared was on Instagram of a recent Christmas party. David said Kate "was so sharp and quick on her feet." In both posts he also wrote, ?It's a rough world out there people, try to hang on.?