Mexican Mother and Father have two Children together.
Father, a former law enforcement officer, is now incarcerated in maximum security prison in Mexico.
Mother and Children travel to visit Father in the prison.
Children reportedly complain to Father that Mother does not treat them well.
Father, wielding a homemade weapon, stabs Mother and Children and Mother’s other daughter, killing them all.
Father then attempts suicide, unsuccessfully.
Father is incarcerated for murdering another girlfriend and sexually abusing her daughter.
Read more in this UK Daily Mail article: Inmate at Mexican maximum-security prison kills girlfriend and three children during trip to see him behind bars
