To this day nothing has ever been found, no clothes, no hatchet, no remains, nothing...
This brings us to an individual named Frank James Milligan. Through extensive research my research partner (justiceseeker1) and I found the link between this man and Derrick Engebretson. At the time, Mr. Milligan drove a 1998 Black Honda which was spotted in the area of Derricks disappearance just before he went missing. at the time, Mr. Milligan was employed by The State of Oregon counseling trouble juveniles. At the time, Mr. Milligan had already committed sodomy and attempted murder of a 10 year old Salem boy.
Frank James Milligan
HIS CAR
Mr. Milligan drove a 1998 black Honda. The car WAS searched by LE during the investigation of the Salem boy's case with nothing found pertaining to Derricks case. Mr. Milligan's car was spotted in the area of Derricks disappearance at the time of Derricks disappearance by multiple witnesses.
HIS JOB:
Mr. Milligan was employed by the State of Oregon as a Troubled Juvenal councilor. Mr. Milligan often traveled across Oregon counseling troubled juveniles including locations such as Burns, Salem, Portland, etc..
HIS PAST:
On July 2, 1999 Milligan was arrested for sexually molesting an 11-year-old boy in 1997 to whom he had become a "father figure."
His bail was set at $250,000. His mother posted the bail and he was released from jail.
In March of 2000, the prosecutors asked the court to revoke Milligan's bail for associating with children. The judge refused to return Frank Milligan to jail.
On July 14, 2000 Frank Milligan pled guilty to one count of sex abuse, and two counts of attempted sodomy.
On July 11, 2000, a 10-year-old Oregon boy was abducted from a park. His throat was slashed when he resisted the abductor's attempts to fondle him. He was dumped under some bushes in a field near Salem, and left for dead. The boy survived his injuries and flagged down a passing motorist who took him to the hospital.
On August 09, 2000, Frank Milligan was arrested.
On August 11, 2000 Milligan was charged with kidnapping, sex abuse, and attempted aggravated murder for his attack of the 10-year-old boy.
Milligan received a 6 year and three month sentence for the sex abuse conviction on the 11-year-old boy.
In August Of 2001, Frank Milligan pleaded guilty to kidnapping, sexual abuse and attempted murder for the attack on the 10-year-old boy. He was sentenced to 30 years in prison.
That sentence will begin after he serves the six year sentence for the sexual abuse of the 11-yr-old boy.
Further research by law enforcement showed Milligan had owned books on serial killers John Wayne Gacy, Ted Bundy and others. He stalked children in e-mails pretending to be a 13-year-old boy and was found to collect child











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HIS CURRENT:
Mr. Milligan is currently incarcerated for two different cases. Attempted murder and rape. Mr. Milligan has made a partial confession to Derricks murder but since has recanted. Mr. Milligan is leading LE to believe Derrick is dead and buried in the Burns Oregon area.