HOLTS SUMMIT - A Holts Summit teenager was sentenced to six years in prison Wednesday after admitting to his role in the 2019 shooting death of Marquise Conley.
Grant Deppe, 17, pleaded guilty to second-degree attempted murder and accessory to tampering with physical evidence, according to online court records. Judge Daniel Green of Cole County's Division 2 sentenced Deppe to six years in prison for the former charge and four for the latter.
Missouri CaseNet states Deppe will serve the two sentences concurrently, and will receive credit for time served.
He had been charged with one count of second-degree murder, but prosecutor's amended the charge and also dismissed a charge of armed criminal action.
Almost exactly one year ago, Jefferson City police found Conley, 18, dead in the back bedroom of a Jefferson City home. Deppe was one of two Holts Summit teenagers charged in the case. The other, Devin Schrimpf, 18, is charged with first-degree murder and armed criminal action. A witness told investigators Schrimpf called the residence threatening to "shoot the place up."
Authorities said Deppe acted with Schrimpf to cause Conley's death and Deppe concealed a firearm used in the crime.
Schrimpf pleaded not guilty in September and is expected to appear in court in Cole County Tuesday for a plea/trial setting hearing.
Officers were called to a residence in the 1900 block of Rolling Hills Drive around 3:19 a.m. Oct. 31, 2019, for a reported weapons offense, according to a Jefferson City Police Department probable cause statement. Conley was already dead when police arrived.
A witness stated Schrimpf had placed multiple calls to the residence prior to the shooting. Schrimpf allegedly had said he would "pull up" and "shoot" the place up.
A second witness told officers Schrimpf had gone to the Rolling Hills address Oct. 30 during the day and became angry when he learned another man was in the house. The witness said Schrimpf had to be forced out of the home. After leaving, he allegedly called the witness and said he would "kill everybody over there; I'm shooting the place up."
This second witness was admitted to St. Mary's Hospital about two hours prior to the shooting. Hospital video reportedly showed Schrimpf arriving at the hospital a few minutes after the shooting was reported. When asked what Schrimpf had talked about at this time, the witness stated Schrimpf had said, "It's just me and you; it's always going to be me and you."
Schrimpf allegedly admitted to detectives he had made a phone call to the first witness and had visited the home earlier in the day and another man was there. Detectives reported Schrimpf "provided inconsistent information and was deceptive during the interview."