Mohammed Bijeh was born on May 21, 1970, in Torbat-e Heydarieh, a city in Razavi Khorasan Province, Iran. He grew up in a large family, having six brothers and six half-brothers. When he was just four years old, his mother passed away due to cancer. After his mother's death, his father, who worked as a merchant, remarried quickly. Bijeh did not have any memories of his mother and described his father as a harsh and abusive man. He claimed that his father often physically punished him and used to chain his legs.

Due to his difficult home life, Bijeh was forced to leave school at a young age. At the age of 11, he and his family moved to a place called Khatunabad. There, he had to start working at a furnace to help support the family. During this time, he faced severe abuse, as he reported that he was raped multiple times. 

Mohammed Bijeh committed a series of murders between July 2002 and September 2004. He targeted young boys, killing 54 in total. His first victim was a 10-year-old boy named Mehrab Mandani on July 1, 2002. Over the next two years, he continued to kill, taking boys aged 8 to 15. The names of some of his victims included Arash Luloui, Gholam Alizadeh, Hamed Sadeghpour, and Nematullah Yarmohammadi. His last known victim was Abolhassan Salehy, who was murdered on September 20, 2004.

Bijeh was arrested on September 24, 2004, after a long investigation. He was brought to trial and on November 27, 2004, he was sentenced to execution. During this time, he claimed he would have killed even more if he had not been caught, stating he would have killed 100 children.

On March 16, 2005, Bijeh was executed in Pakdasht. The execution was public and took place in front of a large crowd. He was first whipped as part of his sentence. During the execution, a relative of one of his victims managed to stab him. Eventually, he was hanged by a crane, which resulted in his death.