A mother who waged a two-year battle to bring her daughter’s killer to justice has been shot to death, possibly by the same man suspected of murdering the teenager.

MEXICAN police were holding two accused serial killers in custody yesterday - a female ex-wrestler suspected in the deaths of at least 10 elderly women, and a former soldier accused of torturing and killing at least four gay men.

A former professional wrestler captured while fleeing a house where an 82-year-old woman had been strangled with a stethoscope has been linked to the deaths of at least 10 elderly women in Mexico City, police said today, raising hopes that the notorious Little Old Lady Killer is finally in custody.