mexico city wear black clothe skeletal face paint dozens women march downtown mexico city wednesday commemorate grow number women murder pressure government put end say rampant impunity fuel 200 protesters hold photos murder sisters daughters friends chant one procession somber contrast festive events elsewhere capital eve day dead homicides women rise nearly quarter average president enrique pena nieto compare previous administration mexico total murder tally track hit high level modern history year women face lot danger say claudia correa whose 21 year-old daughter find dead near home veracruz state last month stab wound chest neck speak one even ex-boyfriend correa say ex-boyfriend since disappear investigation underway find authorities anything find killers killers realize take long chance get away go continue allow say correa don photo decease daughter caption justice march plan 50 activists schedule mirror wednesday even several state register high level violence women case tale horror say organizer ana elena contreras push government end murder rape abuse women country thousands violent crimes go unpunished every year contreras say long perpetrators bring book women continue face grave risk mexico score bad violent countries central america 2017 global impunity index publish august include honduras el salvador two murderous countries world past decade problem violence women become serious mexico federal penal code define certain type murder femicide still measure phenomenon femicides difficult due lack specific data say francisco rivas director general national citizen observatory onc civil group monitor justice security mexico part society still consider issue something serious minimize say rivas first four years pena nieto government mexico register 2,543 homicides women average 2,051 term predecessor felipe calderon accord data publish mexico national statistics agency 2,735 homicides women last year second-highest figure year since 1990 double number record decade ago mexico women protest violence skeletal day dead march