A fourth teenager is facing a murder charge in the killing of 15-year-old Devon Pfirsching.

Omedro T. Davis Jr., 16, of Altoona, was taken into custody Sunday and charged with second-degree murder, conspiracy and related charges for his alleged role in Pfirsching’s shooting death on Feb. 25.

According to charges filed Sunday by Altoona police, Davis and three other teenagers — 15-year-old Damien Green and 16-year-olds Owen Southerland and Logan Persing — planned to rob Pfirsching that night and after they lured him to the alley on the 100 block of Fourth Avenue under the pretense of buying a small bag of marijuana. It was Davis who supplied Southerland with the stolen Glock handgun used in the killing, police said.

While Southerland allegedly told investigators the day after the shooting that he bought the gun for 3 grams of marijuana and $110, an informant came forward in early March and claimed the Glock had been stolen from someone who lives in the Logan Hills Apartments and that around Feb. 22, Marcus Ellis gave him the gun, along with three loaded magazines, to “hold” for him, according to the charges.

Ellis was arrested March 9 on a Blair County Sheriff’s warrant and charged two days later by Altoona police with aggravated assault and related charges stemming from a Feb. 16 shooting on Lexington Avenue.

Ellis remains jailed in lieu of $125,000 cash bail and awaits trial after those charges were held for court at his preliminary hearing on Wednesday. He has not been charged in relation to the Pfirsching shooting.

The informant told Altoona police that when Ellis didn’t contact him about the gun, he offered to sell it to Davis for $150. Ultimately, the informant sold it to Davis for $110 and 3 grams of marijuana on Feb. 23, police noted in the charges.

Police contend that on Feb. 23, Davis messaged Southerland to tell him if he got $150 to him he could get him a Glock.

“Bruh if yu get 150 aspa omm I can get yu a strap a Glock,” the message read, according to the charges. Police said the two messaged about the gun with an offer of giving the informant money and marijuana was discussed. Police said the messages indicate the agreed upon price to get the gun turned out to be $100 and 3 grams of marijuana, as Southerland told police when he was questioned Feb. 26.

Police said Davis had photos of himself holding the gun allegedly used in the killing on his phone. Police said the photo is of Davis pointing the gun at the camera and when he was questioned after the shooting about the photos that were found on his phone, he allegedly admitted it was the gun used in the robbery and murder. Davis told investigators the photo was taken at Green’s home. Police said a similar photo of Southerland holding the gun was found after a search of Southerland’s phone and social media records.

Police said a check of cellphones belonging to Southerland, Persing, Green and Davis revealed messages between the teenagers in which they discuss robbing Pfirsching earlier in the day of the shooting. They name Pfirsching as the intended target of the robbery and discuss the logistics since they were concerned about what to do if Pfirsching showed up in a vehicle with other people.

Police noted the four chatted about what to do if he is in a vehicle and whether they should get in with him or have Pfirsching get out. Southerland at one point messaged, “I’ll just put a gun to his head when we hop in the whip. I need the backseat though,” Southerland messaged during the group SnapChat conversation that started at about 5:30 p.m. on Tuesday, Feb. 25, just hours before Pfirsching’s killing. Whip is slang for a vehicle.

“And this ain’t gonna work if he ain’t by himself,” Southerland pointed out after Persing messaged that he would just ask Pfirsching to get out of the car.

“Davis then advises Southerland to ‘Shoot da bitch in da air! Let em kno yu aint’t playin.’,” Altoona police Detective Sgt. Terry Merritts wrote in the charges filed Sunday. “Southerland replies, ‘He in the whip, what am I gonna shot the sealing?'”

Police noted that Green tells him they are “workin on that” and that Davis replied, “Word” and “Yerr.”

Police said Davis also messaged Southerland after the shooting, about 6 a.m. Wednesday, Feb. 26, to tell him to hide the handgun.

“Ightm bring everything bro get rid of it,” Davis allegedly wrote in messages police say he later deleted. “Cuz if they don’t come tonight tmr they delly will.” Davis also messaged Southerland, “Cuz yu shot em” and told him to “take alleys” and discussed the charges he would face, mentioning they will be worse if Pfirsching died. Davis also urged Southerland not to “fold” when it came to divulging what happened.

Investigators scoured the East End in the hours and days after the murder, but the gun was not found. Police did not indicate if the gun had been located when Davis was arrested Sunday.

Davis was arraigned Sunday just before 6 p.m. by Magisterial District Judge Daniel DeAntonio, who denied bail. In all, Davis is charged with second-degree murder, conspiracy, robbery, criminal use of a communication facility, carrying a firearm without a license, minors not to possess firearms, delivery of a controlled substance, felony illegal transfer of a firearm and delivery of a firearm to a minor.

Davis remains in Blair County Prison, and a preliminary hearing is slated for Wednesday.

Mirror Staff Writer Greg Bock is at 946-7458.