jian gui???

my mum was asking me tis morning y do pple sometimes c shadows out o e corner o their eyes....she went 2 a relative's funeral ytd. apparently, e relative had been seeing shadows very frequently & she jumped 2 her death on mon.....her husband had asked her 2 c e doc if she's not feeling well. on tt fateful day, her husband as usu went 2 work. at ard 9, she jumped fr e 10th floor o her blk....e husband wasn't contacted until ard 8 later in e day cos she didn't carry any identifications wif her. she didn't die on e spot, but passed away when she was sent 2 nuh....very sad rite??? i guess she had depression & there was no1 she cld talked 2.....she didn't worked, & she's all alone when her husband works....she's e type who doesn't like 2 associate wif pple...i've never seen her b4 actually.....her husband is my father's cousin. my dad visits his aunt (e husband's mum) once a yr during CNY. they used 2 stay 2gether but e wife 1ed 2 move cos my dad's aunt has some mental problem (fr my observation i presume it is schizophrenia)....my sis went 2 visit once during CNY & e wife juz locks herself in e room....i guess she was pre-disposed 2 depression becos o her personality....i dunno....but i told my mum tt seeing shadows does not equate 2 seeing ghost .....i'm gg 2 do some research on these phenomenon...there must b some scientific explanation....i believe a lot o pple have e experience o seeing shadows out o e corner o our eyes....i'll do a check.....any1 knows any reason 4 tt???